Current weather · Sep 27, 8:06 AM CDT

28.6750, -99.1890

75°

Mostly SunnyFeels like 75° · Humidity 90%NWS forecast for this hour; no recent station reportForecast by NWS Austin/San Antonio, TX · grid 99,22
High
99°
Low
75°
Rain today
1%
Sunrise
7:28 AM
Sunset
7:27 PM

Hour by hour

NWS forecast grid

Scroll sideways for more hours. Pick an hour for every number.

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Sun 8 AM75°75°72°90%0%E3 mph7 mph44%—10 mi-100 ft
Sun 9 AM78°78°73°85%0%SE3 mph7 mph56%—10 mi-100 ft
Sun 10 AM83°90°74°74%0%SSE3 mph8 mph41%—10 mi-100 ft
Sun 11 AM86°93°73°65%0%S3 mph8 mph31%—10 mi-100 ft
Sun 12 PM90°96°71°54%0%SSE3 mph7 mph58%—10 mi25,000 ft
Sun 1 PM92°98°70°49%1%SSE2 mph7 mph25%1%—10 mi-100 ft
Sun 2 PM95°101°69°43%1%SE2 mph7 mph39%1%—10 mi-100 ft
Sun 3 PM97°101°67°38%1%ESE3 mph8 mph47%1%—10 mi-100 ft
Sun 4 PM97°101°66°37%1%ESE3 mph9 mph56%1%—10 mi-100 ft
Sun 5 PM97°100°65°35%1%ESE5 mph10 mph28%1%—10 mi-100 ft
Sun 6 PM98°101°64°33%1%SE5 mph12 mph32%1%—10 mi-100 ft
Sun 7 PM96°98°64°35%1%ESE5 mph13 mph40%1%—10 mi-100 ft
Sun 8 PM94°96°64°37%1%ESE5 mph12 mph36%1%—10 mi-100 ft
Sun 9 PM90°91°63°41%1%ESE5 mph13 mph43%1%—10 mi-100 ft
Sun 10 PM88°89°64°45%1%ESE5 mph13 mph41%1%—10 mi-100 ft
Sun 11 PM85°88°67°55%1%SE6 mph16 mph64%1%—10 mi14,200 ft
Mon 12 AM83°86°68°61%1%SE7 mph15 mph44%1%—10 mi-100 ft
Mon 1 AM81°84°69°67%1%SE7 mph15 mph41%1%—10 mi-100 ft
Mon 2 AM80°83°69°69%1%SE6 mph14 mph34%1%—10 mi-100 ft
Mon 3 AM79°79°69°72%1%SE6 mph13 mph31%1%—10 mi-100 ft
Mon 4 AM78°78°70°76%1%SE6 mph13 mph33%1%—10 mi-100 ft
Mon 5 AM77°77°70°79%1%ESE5 mph12 mph49%1%—10 mi-100 ft
Mon 6 AM76°76°70°82%1%ESE5 mph9 mph48%1%—10 mi-100 ft
Mon 7 AM76°76°70°82%0%E5 mph8 mph42%—10 mi-100 ft
Mon 8 AM75°75°71°87%0%E3 mph8 mph47%—10 mi-100 ft
Mon 9 AM78°78°73°85%0%ESE5 mph8 mph21%—10 mi-100 ft
Mon 10 AM82°87°73°74%0%ESE5 mph9 mph31%—10 mi-100 ft
Mon 11 AM86°91°71°61%0%ESE5 mph9 mph39%—10 mi-100 ft
Mon 12 PM89°94°70°54%0%ESE5 mph9 mph28%—10 mi-100 ft
Mon 1 PM92°96°68°46%0%ESE6 mph12 mph13%—10 mi-100 ft
Mon 2 PM95°99°67°40%0%ESE7 mph14 mph30%—10 mi-100 ft
Mon 3 PM96°100°66°38%0%ESE8 mph16 mph47%—10 mi-100 ft
Mon 4 PM98°101°65°34%0%ESE9 mph17 mph40%—10 mi-100 ft
Mon 5 PM96°99°65°36%0%ESE9 mph18 mph51%——
Mon 6 PM96°99°65°36%0%ESE9 mph18 mph43%——
Mon 7 PM95°98°66°39%0%ESE9 mph18 mph49%——
Mon 8 PM91°94°66°44%0%ESE12 mph23 mph46%——
Mon 9 PM88°92°68°52%0%SE13 mph25 mph46%——
Mon 10 PM86°91°70°59%0%SE13 mph25 mph46%——
Mon 11 PM84°89°71°65%0%SE13 mph24 mph49%——
Tue 12 AM82°87°72°72%0%SE12 mph22 mph51%——
Tue 1 AM80°84°72°77%0%SE10 mph20 mph54%——
Tue 2 AM79°79°72°79%0%SE10 mph20 mph59%——
Tue 3 AM77°77°72°85%0%SE9 mph20 mph63%——
Tue 4 AM77°77°72°85%0%SE9 mph20 mph68%——
Tue 5 AM76°76°72°87%0%SE9 mph18 mph72%——
Tue 6 AM75°75°73°94%0%ESE8 mph16 mph75%——
Tue 7 AM75°75°73°94%2%ESE8 mph15 mph79%2%——

The next 16 days

NWS grid published Sep 27, 6:42 AM CDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2799°75°Mostly Sunny1%wind 6 mph · gusts 16 mph
  2. MonSep 2898°75°Mostly Sunny1%wind 13 mph · gusts 25 mph
  3. TueSep 2997°77°Partly Sunny2%wind 15 mph · gusts 29 mph
  4. WedSep 3098°76°Partly Sunny then Chance Showers And Thunderstorms45%0.25 inwind 16 mph · gusts 29 mph
  5. ThuOct 191°72°Showers And Thunderstorms Likely71%1.87 inwind 14 mph · gusts 25 mph
  6. FriOct 285°70°Showers And Thunderstorms Likely67%2.36 inwind 8 mph · gusts 16 mph
  7. SatOct 385°70°Chance Rain Showers44%0.52 inwind 7 mph · gusts 14 mph
  8. SunOct 486°71°34%0.15 inwind 8 mph · gusts 16 mph
  9. MonOct 583°65°National Blend26%0.15 inwind 13 mph · gusts 22 mph
  10. TueOct 683°64°National Blend24%0.19 inwind 9 mph · gusts 18 mph
  11. WedOct 7~85°70°Model mean
  12. ThuOct 8~86°66°Model mean
  13. FriOct 9~82°67°Model mean0.03 in
  14. SatOct 10~80°64°Model mean
  15. SunOct 11~81°62°Model mean0.59 in
  16. MonOct 12~80°61°Model mean

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like75°
  • WindE 3 mphgusts 7 mph
  • Radar over this pointno reading
  • Humidity90%
  • Dew point72°
  • Pressure—
  • UV index—
  • Air quality—
  • Visibility10 mi
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise7:58 PMMoonset 8:22 AM
  • Moon phaseWaning gibbous99% lit

The National Blend of Models

NOAA NBM v5.0 · run of Sep 27, 1:00 AM CDT

NOAA’s weighted blend of every model it runs, to eleven days, with the chances the grid above does not carry. Where the local office’s grid reaches, its figure sits beneath the blend’s; where it does not, the blend stands alone.

  1. TodaySep 2799°75°NWS grid 99° / 75°rain 1%wind 6 mph · gusts 16 mph
  2. MonSep 2898°75°NWS grid 98° / 75°rain 1%wind 14 mph · gusts 26 mph
  3. TueSep 2997°77°NWS grid 97° / 77°rain 3%thunder 12%wind 15 mph · gusts 29 mph
  4. WedSep 3098°75°NWS grid 98° / 76°rain 49%thunder 35%0.31 inwind 16 mph · gusts 29 mph
  5. ThuOct 191°72°NWS grid 91° / 72°rain 71%thunder 43%2.01 inwind 14 mph · gusts 24 mph
  6. FriOct 285°70°NWS grid 85° / 70°rain 65%thunder 25%1.99 inwind 8 mph · gusts 16 mph
  7. SatOct 386°70°NWS grid 85° / 70°rain 40%thunder 14%0.46 inwind 7 mph · gusts 14 mph
  8. SunOct 486°68°NWS grid 86° / 71°rain 34%0.23 inwind 8 mph · gusts 16 mph
  9. MonOct 583°65°Beyond the NWS gridrain 26%0.15 inwind 13 mph · gusts 22 mph
  10. TueOct 683°64°Beyond the NWS gridrain 24%0.19 inwind 9 mph · gusts 18 mph
  11. WedOct 785°—Beyond the NWS gridrain 11%0.03 inwind 7 mph · gusts 14 mph
68°86°104°MonTueWedThuFriSatSun

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Sep 27, 1:00 AM CDT · GFS Sep 27, 1:00 AM CDT · GEFS Sep 27, 1:00 AM CDT · ECMWF Sep 26, 7:00 PM CDT · ECMWF AI Sep 26, 7:00 PM CDT

Each line is one model’s own forecast at its own grid cell: three kilometers for HRRR, a quarter of a degree for the global models, which can sit a few hundred meters above or below the town. Where they agree the forecast is settled; where they part is where it is not.

59°82°104°MonTueWedThuFriSatSun

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Sep 2799° 75°94° 75°97° 76°96° 74°99° 78°~98° 78°
Mon Sep 2898° 75°93° 74°98° 74°97° 74°98° 79°~98° 78°
Tue Sep 2997° 77°~78° 77°101° 75°95° 75°0.01 in98° 78°~97° 78°
Wed Sep 3098° 76°0.25 in—98° 79°0.09 in96° 79°0.30 in100° 79°0.01 in~96° 81°0.06 in
Thu Oct 191° 72°1.87 in—83° 71°3.41 in91° 77°0.84 in97° 77°1.74 in~85° 78°1.09 in
Fri Oct 285° 70°2.36 in—75° 69°0.03 in83° 73°0.61 in82° 73°1.53 in~81° 74°0.48 in
Sat Oct 385° 70°0.52 in—76° 68°79° 70°0.18 in~80° 67°1.70 in~79° 70°0.39 in
Sun Oct 486° 71°0.15 in—81° 65°81° 68°0.08 in~81° 66°~85° 72°0.06 in
Mon Oct 5——85° 67°81° 69°0.18 in~82° 68°~85° 75°0.05 in
Tue Oct 6——86° 68°80° 67°0.17 in~85° 67°~85° 73°
Wed Oct 7——~84° 68°~69° 69°~86° 69°~85° 71°
Thu Oct 8——~84° 69°—~87° 83°~88° 63°
Fri Oct 9——~74° 61°—~84° 71°0.08 in~88° 68°
Sat Oct 10——~74° 57°—~84° 71°0.02 in~82° 64°
Sun Oct 11——~76° 58°—~84° 73°1.76 in~82° 56°
Mon Oct 12——~80° 61°———

A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.

ECMWF ensemble meteogram

ECMWF ensemble meteogram for this place: box plots of cloud cover, precipitation, wind speed and temperature from the 51 ensemble members for ten days.
Rendered by ECMWF from its 51-member ensemble, in metric units: each box spans the middle half of the members, the whiskers the rest, the line the control run. A forecast, not an observation. © ECMWF, CC BY 4.0.

The next 90 days

NOAA GHCN normals and records at Cotulla Municipal (COT) · Climate Prediction Center outlooks

No forecast has skill day by day past about two weeks, and this page does not print one. Where the models stop, the calendar takes over: the 1991 to 2020 normal for each date, the record high and low ever set on it, and where the Climate Prediction Center leans warm, cool, wet or dry over the coming weeks, the month and the season. A site that shows a high for a date three months out is showing you this normal with a wobble.

The forecast reaches Mon Oct 12, from the NWS grid, then the National Blend, then the mean of the global models. Beyond it the lines are the calendar.

Climate Prediction Center (CPC) temperature leanwarmer 40% · Oct 2026equal chances · Oct to Dec20°40°60°80°100°TodayOct 1Nov 1Dec 1

Forecast high and lowNormal high and lowRecord high and lowCPC leans warmer than normalCPC near normal or equal chances

Week ofNormalWarmest on recordColdest on recordTemperature leanPrecipitation lean
Sep 2791° / 67°107° (2005)48° (1967)no outlookno outlook
Oct 488° / 67°104° (2021)42° (1952)near normal most likely · days 8 to 1433% chance above normal · days 8 to 14
Oct 1187° / 65°101° (2020)42° (1977)40% chance above normal · Oct 202640% chance above normal · Oct 2026
Oct 1887° / 65°99° (2001)37° (1976)40% chance above normal · Oct 202640% chance above normal · Oct 2026
Oct 2581° / 54°99° (2010)35° (1970)40% chance above normal · Oct 202640% chance above normal · Oct 2026
Nov 180° / 58°98° (2024)28° (1951)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Nov 879° / 57°93° (2023)26° (2018)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Nov 1577° / 49°93° (1950)28° (1970)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Nov 2276° / 49°95° (2005)28° (2011)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Nov 29—92° (2019)21° (1976)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Dec 668° / 45°98° (1951)21° (1978)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Dec 1365° / 44°91° (2019)20° (1972)equal chances · Oct to Dec40% chance above normal · Oct to Dec
Dec 2068° / 44°89° (2016)16° (1973)equal chances · Oct to Dec40% chance above normal · Oct to Dec

Health and activities

Rules of thumb over the next 24 hours of forecast, the warnings in force, the station’s report, air quality and pollen

None of these is a measurement. Each is a rating of the forecast ahead, and of what is happening at the point right now, against what the activity or the ailment is known to mind, and each names the figure that decided it. An ailment or a pest is rated as a risk, low to extreme; an activity, a chore or a journey as a condition, poor to ideal.

Each rating says which span it is for: the rest of today’s daylight, tonight, or the next 24 hours.

Health

  • Arthritisnext 24 hModeratehumid
  • Sinus pressurenext 24 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hModerateheat
  • Asthmanext 24 hLowclean air
  • Heat stresstodayVery highheat
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightFairwarm night

Outdoors

  • RunningtodayFairhot
  • HikingtodayGoodhot
  • BikingtodayVery goodhot
  • GolftodayVery goodhot
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayIdealfine conditions
  • Beach and pooltodayIdealfine conditions
  • CampingtonightIdealfine conditions
  • StargazingtonightPoorpartly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayVery goodhot
  • GardeningtodayVery goodhot
  • Outdoor entertainingtodayVery goodhot
  • Drying laundry outsidetodayIdealfine conditions
  • Painting and outdoor projectstodayVery goodhot
  • FrosttonightLowmild

Pests

  • MosquitoestodayVery highwarm
  • TickstodayModeratewarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayHighwarm

Stargazing

Worked out from the NWS hourly forecast and the sun and moon

Tonight has no dark, clear hour without a bright moon in this forecast. Rated poor.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
SundayPoor8:46 PM to 6:10 AM0 of 9None98%7 mph
MondayPoor8:44 PM to 6:10 AM0 of 9None93%13 mph
TuesdayPoor8:43 PM to 6:11 AM0 of 9None87%16 mph
WednesdayPoor8:42 PM to 6:11 AM0 of 9None79%2 h14 mph
ThursdayPoor8:41 PM to 6:12 AM0 of 9None70%5 h8 mph
FridayPoor8:40 PM to 6:13 AM0 of 9None60%5 h6 mph
SaturdayPoor8:38 PM to 6:13 AM0 of 9None49%3 h6 mph

Dark is the sun 18 degrees below the horizon; where it never gets that low, 12 degrees, marked nautical. Clear is sky cover of 20% or less. A bright moon is one above the horizon with a quarter or more of its disc lit. Transparency in the table is estimated from surface humidity (70% and 85% mark fair and poor) and visibility, since the forecast carries no haze or high cloud moisture. Seeing and transparency by hour, where shown, are Environment and Climate Change Canada’s astronomy forecast (regional model; seeing from cloud, wind shear, turbulence near the ground and the surface temperature trend; transparency from the moisture through the whole air column), under the Open Government Licence - Canada. Dew is the air within 2 °C of its dew point. Excellent is four or more clear moonless hours with good transparency; good is three; fair is one, or two clear hours.

Golden hour and blue hour

Computed from the sun and moon positions
DayBlue hour, morningGolden hour, morningGolden hour, eveningBlue hour, evening
Sun7:04 AM to 7:13 AM7:13 AM to 7:59 AM6:56 PM to 7:42 PM7:42 PM to 7:51 PM
Mon7:05 AM to 7:14 AM7:14 AM to 8:00 AM6:55 PM to 7:40 PM7:40 PM to 7:49 PM
Tue7:05 AM to 7:14 AM7:14 AM to 8:00 AM6:54 PM to 7:39 PM7:39 PM to 7:48 PM
Wed7:06 AM to 7:15 AM7:15 AM to 8:01 AM6:52 PM to 7:38 PM7:38 PM to 7:47 PM
Thu7:06 AM to 7:15 AM7:15 AM to 8:01 AM6:51 PM to 7:37 PM7:37 PM to 7:46 PM
Fri7:07 AM to 7:16 AM7:16 AM to 8:02 AM6:50 PM to 7:36 PM7:36 PM to 7:45 PM
Sat7:07 AM to 7:16 AM7:16 AM to 8:02 AM6:49 PM to 7:35 PM7:35 PM to 7:44 PM
NESWSRSSMRMS
  • SR Sunrise 7:28 AM, 92° E
  • SS Sunset 7:27 PM, 268° W
  • MR Moonrise 7:58 PM, 76° ENE
  • MS Moonset 8:22 AM, 281° W
  • Waning gibbous, 99% lit

Golden hour is the sun between 6 degrees above the horizon and 4 degrees below it; blue hour is the sun between 4 and 6 degrees below. These are the definitions timeanddate.com and PhotoPills use. Directions are degrees clockwise from true north, where the sun’s upper edge and the moon’s center cross a flat horizon; hills and buildings change both. None means the sun does not reach that height on the day; all day means it stays inside the band.

Drone flying

NWS hourly forecast, SWPC Kp, FAA TFRs and 14 CFR Part 107

This hour: no-fly (low cloud limits height (107.51)). No stretch of two good hours in the next three days.

Today: civil twilight for Part 107 6:58 AM to sunrise 7:28 AM, and sunset 7:27 PM to 7:57 PM. Anti-collision lighting is required in those minutes and at night.

Sun12 PM6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Sun 8 AMNo-fly3480%10 miup to 0 ft75°low cloud limits height (107.51)
Sun 9 AMNo-fly3480%10 miup to 0 ft78°low cloud limits height (107.51)
Sun 10 AMNo-fly3490%10 miup to 0 ft83°low cloud limits height (107.51)
Sun 11 AMNo-fly3490%10 miup to 0 ft86°low cloud limits height (107.51)
Sun 12 PMGood3480%10 mi400 ft90°nothing against it
Sun 1 PMNo-fly2371%10 miup to 0 ft92°low cloud limits height (107.51)
Sun 2 PMNo-fly2371%10 miup to 0 ft95°low cloud limits height (107.51)
Sun 3 PMNo-fly3491%10 miup to 0 ft97°low cloud limits height (107.51)
Sun 4 PMNo-fly34101%10 miup to 0 ft97°low cloud limits height (107.51)
Sun 5 PMNo-fly56121%10 miup to 0 ft97°low cloud limits height (107.51)
Sun 6 PMNo-fly56131%10 miup to 0 ft98°low cloud limits height (107.51)
Sun 7 PMNo-fly518261%10 miup to 0 ft96°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 8 PMNo-fly518251%10 miup to 0 ft94°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 9 PMNo-fly518261%10 miup to 0 ft90°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 10 PMNo-fly518261%10 miup to 0 ft88°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Sun 11 PMNo-fly614241%10 mi400 ft85°gusts near or over your limit, night: lighting and night training required (107.29)
Mon 12 AMNo-fly717251%10 miup to 0 ft83°gusts near or over your limit, low cloud limits height (107.51), night: lighting and night training required (107.29)
Mon 1 AMNo-fly717251%10 miup to 0 ft81°gusts near or over your limit, low cloud limits height (107.51), night: lighting and night training required (107.29)
Mon 2 AMNo-fly623311%10 miup to 0 ft80°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Mon 3 AMNo-fly623301%10 miup to 0 ft79°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Mon 4 AMNo-fly623301%10 miup to 0 ft78°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Mon 5 AMNo-fly518251%10 miup to 0 ft77°gusts near or over your limit, low cloud limits height (107.51), wind at 400 ft near or over your limit, night: lighting and night training required (107.29)
Mon 6 AMNo-fly518231%10 miup to 0 ft76°low cloud limits height (107.51), wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Mon 7 AMNo-fly518220%10 miup to 0 ft76°low cloud limits height (107.51), wind at 400 ft near or over your limit, gusts near or over your limit, civil twilight: lighting required (107.29)

Flight restrictions nearby

Reading the FAA’s temporary flight restrictions.

Flight restrictions on the map. TFRs are not the whole picture: controlled airspace around airports needs LAANC authorization. Check the FAA’s B4UFLY.

Wind at 400 ft is estimated from the 10 m forecast by the power law, with exponents for each Pasquill stability class (Irwin 1979, rural, as in EPA dispersion models; the class from wind, sun height and cloud, after Turner 1970); gusts keep the ground gust’s margin. Caution from three quarters of your limit; the default 24 mph is the wind resistance printed for common sub-250 g drones. 14 CFR 107.51: “The minimum flight visibility, as observed from the location of the control station must be no less than 3 statute miles” and at least “500 feet below the cloud”. 14 CFR 107.29: “No person may operate a small unmanned aircraft system during periods of civil twilight unless the small unmanned aircraft has lighted anti-collision lighting visible for at least 3 statute miles”; civil twilight is the 30 minutes before sunrise and after sunset, in Alaska the Air Almanac’s. Kp: SWPC’s scales say satellite navigation problems may occur at G3 (Kp 7) and navigation is “degraded for hours” at G4 (Kp 8); Kp 5 is the typical app warning. Typical limits, not rules: rain chance 30% caution and 60% no-fly, thunder 10% and 20%, below 0 °C caution and −10 °C no-fly, over 40 °C caution. Your drone’s manual and the airspace come first.

Spraying and field work

Worked out from the NWS hourly forecast

Hours fit for spraying, and the days dry enough for fieldwork and hay, read from this forecast’s wind, gusts, humidity, temperature and rain.

Spraying windows

  • Sun 9 AM to 1 PM 4 hours, every hour within the rules
  • Sun 9 PM to 11 PM 2 hours, some with delta T between 8 and 10 °C
  • Mon 12 AM to 8 AM 8 hours, every hour within the rules
  • Mon 9 AM to 2 PM 5 hours, some with delta T between 8 and 10 °C
  • Sat 7 PM to Sun 12 AM 5 hours, every hour within the rules
Sun12 PM6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
SundayDry1%0.00 in33%5 mph3 d
MondayDry0%0.00 in34%9 mph2 dGood
TuesdayDry2%0.00 in42%15 mph1 dGood
WednesdayWet45%0.25 in45%15 mph
ThursdayWet71%1.87 in58%10 mph
FridayWet59%2.36 in67%8 mph
SaturdayWet35%0.52 in63%7 mph
SundayShowers possible34%0.14 in57%8 mph

Spraying: sustained wind 3 to 10 mph, the range US extension services and most labels give; gusts no more than 15 mph (this page’s limit); delta T (air minus wet-bulb temperature) 2 to 8 °C preferred and 8 to 10 °C marginal, from GRDC guidance, with the wet bulb by Stull’s formula; no hour at a 30% chance of rain or 0.25 mm forecast during the rain-free time. Follow the product label, which overrides all of this. Field days: dry is no daytime hour at a 30% chance and under 1 mm all day, wet is 6 mm (0.25 in) or more; soil moisture is not in the forecast, so ground still wet from earlier rain is not accounted for. Hay drying marks a dry day with humidity down to 50% and a breeze of 5 mph or more.

Solunar times

Computed from the moon’s position

The best-rated day this week is Sunday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sun Best12:49 AM to 2:49 AM1:13 PM to 3:13 PM7:52 AM to 8:52 AM7:28 PM to 8:28 PM 99%7:28 AM, 7:27 PM
Mon Good1:38 AM to 3:38 AM2:03 PM to 4:03 PM8:56 AM to 9:56 AM8:04 PM to 9:04 PM 95%7:28 AM, 7:26 PM
Tue Fair2:30 AM to 4:30 AM2:57 PM to 4:57 PM10:03 AM to 11:03 AM8:47 PM to 9:47 PM 90%7:29 AM, 7:25 PM
Wed Poor3:26 AM to 5:26 AM3:56 PM to 5:56 PM11:12 AM to 12:12 PM9:36 PM to 10:36 PM 82%7:29 AM, 7:24 PM
Thu Fair4:26 AM to 6:26 AM4:58 PM to 6:58 PM12:20 PM to 1:20 PM10:34 PM to 11:34 PM 73%7:30 AM, 7:22 PM
Fri Fair5:29 AM to 7:29 AM6:00 PM to 8:00 PM1:24 PM to 2:24 PM 64%7:30 AM, 7:21 PM
Sat Fair6:31 AM to 8:31 AM7:02 PM to 9:02 PM11:38 PM to 12:38 AM2:22 PM to 3:22 PM 53%7:31 AM, 7:20 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index

Major periods are two hours centered on the moon’s passage overhead and underfoot; minor periods are one hour centered on moonrise and moonset: the conventional durations of John Alden Knight’s solunar tables (1936). The rating is this site’s: one point to start, two more within a day and a half of a new or full moon (one more within three and a half days), and one more when a period falls within an hour of sunrise or sunset. The theory has mixed support in fisheries research; the times are exact astronomy.

In words

NWS forecast periods, as issued
  1. Today99° · 1% · SE 0–5 mph

    Mostly sunny, with a high near 99. Heat index values as high as 101. Southeast wind 0 to 5 mph.

  2. Tonight75° · 1% · SE 5 mph

    Partly cloudy, with a low around 75. Heat index values as high as 101. Southeast wind around 5 mph.

  3. Monday98° · 1% · ESE 5–10 mph

    Mostly sunny, with a high near 98. Heat index values as high as 101. East southeast wind 5 to 10 mph, with gusts as high as 20 mph.

  4. Monday Night75° · ESE 10–15 mph

    Mostly cloudy, with a low around 75. East southeast wind 10 to 15 mph, with gusts as high as 25 mph.

  5. Tuesday97° · 2% · SE 10–15 mph

    Partly sunny, with a high near 97. Southeast wind 10 to 15 mph, with gusts as high as 30 mph.

  6. Tuesday Night77° · 3% · SE 15 mph

    Mostly cloudy, with a low around 77. Southeast wind around 15 mph, with gusts as high as 30 mph.

  7. Wednesday98° · 33% · SSE 15 mph

    A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 98. South southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

  8. Wednesday Night76° · 49% · SE 15 mph

    A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

  9. Thursday91° · 71% · SE 5–10 mph

    Showers and thunderstorms likely. Partly sunny, with a high near 91. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

  10. Thursday Night72° · 71% · E 0–10 mph

    Showers and thunderstorms likely. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

  11. Friday85° · 67% · NE 5–10 mph

    Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Chance of precipitation is 70%.

  12. Friday Night70° · 56% · NE 0–5 mph

    Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

  13. Saturday85° · 43% · NNE 5 mph

    A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.

  14. Saturday Night70° · 35% · NE 0–5 mph

    A chance of showers and thunderstorms. Partly cloudy, with a low around 70.

The forecaster’s discussion

NWS Austin/San Antonio, TX · issued Sep 27, 5:48 AM CDT

Written by the forecaster on duty for their own colleagues and for anyone who wants to know why the forecast says what it says. It is not edited for the public, so it uses the office’s shorthand; it is also the most honest thing any weather service publishes.

KEY Messages

Updated at 546 AM CDT Sun Sep 27 2026

Low chance for isolated storms Sunday afternoon and evening over the Hill Country and Southern Edwards Plateau.

Drier with summer-like temperatures continue into early next week.

A Pacific cold front may bring widespread rain next week.

Short Term

1200 AM CDT Sun Sep 27 2026

(Today through Monday)

The 500mb high has moved to Deep South TX, and the flow over our region has become westerly. The low level flow across our CWA is from the southeast keeping a warm (hot), moist airmass in place. The upper high will open into a ridge through the short term period the flow to northwesterly today. This may allow a few showers or thunderstorms to develop this afternoon. If any storms do form it will most likely be over the Hill Country and Southern Edwards Plateau. Convection could last until the early evening, but the overnight should be dry. Monday the ridge will shift to the east and suppress any chance for convection. Temperatures through the period will be about the same as the last few days.

Long Term

1200 AM CDT Sun Sep 27 2026

(Monday night through Saturday)

Models are still showing the first real Pacific cold front of the season moving into TX, but the timing is not consistent. Now it's looking later in the week. Despite this change there are still chances for widespread rain starting Tuesday. Now models are showing rain chances extending into Saturday. They are also showing signs of possible heavy area at times during this period. Although our confidence for the timing is low, currently the best chances for heavy rain are Wednesday night through Thursday night. The airmass change is looking less significant, but all the clouds and rain will likely keep daytime temperatures down during the second half of the week, and highs should stay in the 80s Thursday through Saturday.

Aviation

546 AM CDT Sun Sep 27 2026

(12Z TAFS)

VFR skies are expected to persist with only a few interruptions of MVFR CIGS possible near and N of SAT in the next hour or so. Light E to SE winds will continue, which should help make the later periods follow diurnal trend trend a lot like the earlier periods. Thus no low clouds are projected for Monday morning. No convection is expected near any TAF sites in the area.

Preliminary Point Temps / Pops

Austin Camp Mabry 100 74 99 74 / 10 0 0 0 Austin Bergstrom Intl Airport 99 74 98 73 / 0 0 0 0 New Braunfels Muni Airport 97 72 97 72 / 0 0 0 0 Burnet Muni Airport 96 71 95 71 / 20 10 0 0 Del Rio Intl Airport 100 77 99 76 / 10 20 0 0 Georgetown Muni Airport 98 73 97 73 / 10 10 0 0 Hondo Muni Airport 97 73 96 73 / 0 0 0 0 San Marcos Muni Airport 99 72 98 72 / 0 0 0 0 La Grange - Fayette Regional 99 73 98 73 / 0 0 0 0 San Antonio Intl Airport 96 75 96 75 / 0 0 0 0 Stinson Muni Airport 97 75 97 75 / 0 0 0 0

EWX Watches / Warnings / Advisories

None.

The outlooks beyond

SPC, WPC, CPC and the Drought Monitor, read at this point

The national centers each publish a judgment the local grid does not carry. Read here at this exact coordinate.

Severe weather

  1. Day 1 · Sun Sep 27No risk area
  2. Day 2 · Mon Sep 28No risk area
  3. Day 3 · Tue Sep 29General Thunderstorms Risk
  4. Day 4 · Wed Sep 30No risk area
  5. Day 5 · Thu Oct 1No risk area
  6. Day 6 · Fri Oct 2No risk area
  7. Day 7 · Sat Oct 3No risk area
  8. Day 8 · Sun Oct 4No risk area

Rainfall

  1. Day 1 · Sun Sep 27Under 0.01 in
  2. Day 2 · Mon Sep 28Under 0.01 in
  3. Day 3 · Tue Sep 29Under 0.01 in
  4. Day 4-5 · Sep 30–Oct 13.00 in
  5. Day 6-7 · Oct 2–Oct 31.75 in

The rainfall forecast on the map, days 1 to 7

Flash flood risk

  1. Day 1 · Sun Sep 27Below marginal
  2. Day 2 · Mon Sep 28Below marginal
  3. Day 3 · Tue Sep 29Below marginal
  4. Day 4 · Wed Sep 30Slight
  5. Day 5 · Thu Oct 1Slight

Six to fourteen days

  1. Days 6–10 · TemperatureNear normal most likelyOct 2–Oct 6
  2. Days 6–10 · Precipitation50% chance above normalOct 2–Oct 6
  3. Days 8–14 · TemperatureNear normal most likelyOct 4–Oct 10
  4. Days 8–14 · Precipitation33% chance above normalOct 4–Oct 10

Hazards, 3 to 14 days

  1. Sep 30–Oct 2Heavy Rain

Drought

  1. Drought Monitor, map of Sep 22D1 Moderate drought

Drought in this county: the map, the record since 2000 and the outlook

Frost and climate

NOAA 1991-2020 normals, Dilley

The last spring freeze (32°F) usually comes around February 16 and the first fall freeze around December 6: a growing season of about 296 days.

One fall in ten brings a freeze by November 16; one spring in ten still has one after March 12.

Climate of 28.68, -99.19: normals, records and every month

Everything else on the grid

NWS forecast grid · 26 elements

The forecast office edits about sixty fields for every cell of its grid. The common ones are above; these are the rest, as the daily extreme, for anyone who needs the mixing height, the fire danger or the swell.

ElementSunMonTueWedThuFriSatSun
HeatRisk max3 · Major3 · Major3 · Major3 · Major3 · Major2 · Moderate1 · Minor1 · Minor
Wet bulb globe temperature max88°87°87°88°85°81°81°81°
Heat index max101°101°104°106°98°90°88°90°
Chance of thunder max1%1%2%25%39%35%20%10%
Cloud ceiling min-100 ft-100 ft
Visibility min10 mi10 mi
Mixing height max7,100 ft7,300 ft7,400 ft7,200 ft6,200 ft2,800 ft3,000 ft3,300 ft
Transport wind max16 mph17 mph22 mph24 mph22 mph15 mph12 mph10 mph
Twenty-foot wind max5 mph10 mph13 mph14 mph12 mph7 mph6 mph5 mph

Against the record

NOAA GHCN · Cotulla Municipal (COT) · 15 mi away

Each forecast day against the same calendar date at the nearest long-record station: the 1991 to 2020 normal, and the record high and low with the year they were set.

DayForecastNormalRecord highRecord low
Sun Sep 2799° / 75°91° / 69°105° (1953)55° (1970)
Mon Sep 2898° / 75°92° / 68°107° (2005)48° (1967)
Tue Sep 2997° / 77°90° / 68°101° (1977)49° (1967)
Wed Sep 3098° / 76°91° / 67°101° (1977)50° (2020)
Thu Oct 191° / 72°92° / 67°100° (1977)48° (1974)
Fri Oct 285° / 70°91° / 69°100° (1977)52° (1949)
Sat Oct 385° / 70°91° / 67°101° (1979)52° (1975)
Sun Oct 486° / 71°91° / 67°101° (2023)48° (1975)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sun7:04 AM7:28 AM7:27 PM7:51 PM11 h 59 min Waning gibbous · 99% lit
Mon7:05 AM7:28 AM7:26 PM7:49 PM11 h 58 min Waning gibbous · 95% lit
Tue7:05 AM7:29 AM7:25 PM7:48 PM11 h 56 min Waning gibbous · 90% lit
Wed7:06 AM7:29 AM7:24 PM7:47 PM11 h 55 min Waning gibbous · 82% lit
Thu7:06 AM7:30 AM7:22 PM7:46 PM11 h 52 min Waning gibbous · 73% lit
Fri7:07 AM7:30 AM7:21 PM7:45 PM11 h 51 min Waning gibbous · 64% lit
Sat7:07 AM7:31 AM7:20 PM7:44 PM11 h 49 min Last quarter · 53% lit
Sun7:08 AM7:31 AM7:19 PM7:42 PM11 h 48 min Last quarter · 43% lit

Forecast from the National Weather Service forecast grid at api.weather.gov, updated by the local office through the day; the written periods and hourly digest are the NWS’s own. Outlooks from the Storm Prediction Center, the Weather Prediction Center and the Climate Prediction Center via NOAA’s map services. Records and normals from NOAA’s Global Historical Climatology Network. Sun and moon computed here. Place names from GeoNames (CC BY 4.0).

What is here

Seven days
The high, the low, the chance and amount of rain and snow, the wind and the forecaster’s words for each day and night, from the National Weather Service grid for the exact cell your town sits in.
Hour by hour
Temperature, what it feels like, dew point, humidity, chance and amount of precipitation, wind and gusts, sky cover, the chance of thunder, pressure, visibility and ceiling, as a chart and as a table, with nights shaded.
Everything else on the grid
The office edits about sixty fields for every cell. The ones the mainstream forecast pages leave out are here as a daily table: HeatRisk, wet bulb globe temperature, lightning activity, mixing height, transport wind, the fire weather indices, and at the coast the waves and swell.
The discussion
The Area Forecast Discussion the forecaster wrote to explain the forecast, in their own words, with the specialist annexes folded away. Also the office’s hazardous weather outlook.
Beyond the week
The Storm Prediction Center’s severe weather category for each of the next eight days, the Weather Prediction Center’s rainfall forecast to day seven and its winter storm severity, and the Climate Prediction Center’s odds for days six to fourteen, all read at your coordinate.
Against the record
Each forecast day beside the same date at the nearest long-record station: the thirty-year normal and the record high and low with their years, so a forecast high that would break a record says so.
The next 90 days
The forecast as far as the grid, the National Blend and the global models reach, and the calendar after that: the normal and the record for every date, with the Climate Prediction Center’s lean for the weeks, the month and the season drawn over them. No made-up highs for a date three months out.

Common questions

Where does this forecast come from?

From the National Weather Service forecast grid published at api.weather.gov, the same grid the local forecast office edits through the day and the source of every forecast on weather.gov. The written periods, the hourly digest and the forecaster’s discussion are the NWS’s own products, shown as issued. Nothing here is a blend a website made.

How far ahead does it go?

The grid runs seven days ahead, hour by hour for the first days and in three to six hour steps after that. The National Blend of Models carries the days to eleven and the global models to sixteen. Beyond that the page carries the national centers’ outlooks, severe weather to day eight, rainfall to day seven, and the Climate Prediction Center’s odds for the coming weeks, month and season, over a ninety-day calendar of the normal and the record for each date. No forecast has skill day by day past about two weeks, and this page does not print one.

Why is this different from the app on my phone?

Most forecast apps show a blend of models chosen by the company that makes the app. This page shows the forecast the local National Weather Service office issues, edited by the forecasters who will also issue the warnings, and it shows all of it rather than the six numbers that fit on a phone. The discussion explains the reasoning, which no app carries.

What is a place’s address here?

Every town has its own page, such as /forecast/us/oklahoma/oklahoma-city/, and every day at a town has one too. A ZIP code typed into the search goes to the town it belongs to. Any coordinate at all can be looked up, and the page names the nearest town.

What the weather actually was · Open the live radar · Where the data comes from