Current weather · Sep 28, 4:23 AM EDT

34.8460, -83.5000

49°

Mostly ClearFeels like 45° · Humidity 83%NWS forecast for this hour; no recent station reportForecast by NWS Greenville-Spartanburg, SC · grid 24,39
High
75°
Low
52°
Rain today
0%
Sunrise
7:27 AM
Sunset
7:22 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
Mon 4 AM49°45°44°83%0%N8 mph10 mph10%0.01 inHg10 mi
Mon 5 AM48°46°43°81%0%N7 mph10 mph8%0.01 inHg10 mi
Mon 6 AM48°45°42°80%0%N7 mph9 mph5%0.01 inHg10 mi
Mon 7 AM48°45°42°79%0%N6 mph9 mph7%0.01 inHg10 mi
Mon 8 AM48°45°42°79%0%NNW6 mph9 mph4%0.01 inHg10 mi
Mon 9 AM52°52°44°73%0%N5 mph8 mph8%0.01 inHg10 mi
Mon 10 AM56°56°44°64%0%NNW2 mph6 mph7%0.01 inHg10 mi
Mon 11 AM60°60°44°55%0%W1 mph5 mph3%0.01 inHg9 mi
Mon 12 PM63°63°43°48%0%N0 mph5 mph5%0.01 inHg9 mi
Mon 1 PM68°68°42°39%0%N0 mph5 mph6%0.01 inHg9 mi
Mon 2 PM72°72°41°33%0%N0 mph5 mph4%0.01 inHg9 mi
Mon 3 PM74°74°42°32%0%N0 mph5 mph2%0.01 inHg9 mi
Mon 4 PM74°74°43°32%0%N1 mph5 mph0%0.01 inHg9 mi
Mon 5 PM74°74°43°34%0%ENE1 mph6 mph2%0.01 inHg9 mi
Mon 6 PM71°71°44°38%0%ESE1 mph6 mph1%0.01 inHg9 mi
Mon 7 PM67°67°46°46%0%SSW1 mph5 mph4%0.01 inHg9 mi
Mon 8 PM62°62°48°61%0%E1 mph5 mph6%0.01 inHg9 mi
Mon 9 PM60°60°48°65%0%NNE2 mph5 mph9%0.01 inHg9 mi
Mon 10 PM58°58°50°73%0%NNE3 mph7 mph9%0.01 inHg9 mi
Mon 11 PM56°56°49°76%0%ENE5 mph8 mph4%0.01 inHg9 mi
Tue 12 AM56°56°48°76%0%NE5 mph8 mph3%0.01 inHg9 mi
Tue 1 AM55°55°48°76%0%NE5 mph8 mph5%0.01 inHg9 mi
Tue 2 AM55°55°47°76%0%ENE5 mph7 mph7%0.01 inHg9 mi
Tue 3 AM55°55°47°74%0%NE5 mph7 mph8%0.01 inHg8 mi
Tue 4 AM54°54°46°76%0%NNE3 mph7 mph5%0.01 inHg7 mi
Tue 5 AM53°53°46°76%0%ENE3 mph7 mph6%0.01 inHg7 mi
Tue 6 AM53°53°45°76%0%NNE2 mph6 mph6%0.01 inHg7 mi
Tue 7 AM53°53°45°76%0%NNE2 mph6 mph12%0.01 inHg7 mi
Tue 8 AM53°53°46°77%0%ENE2 mph6 mph4%0.01 inHg7 mi
Tue 9 AM56°56°48°75%0%NE2 mph7 mph5%0.01 inHg—
Tue 10 AM60°60°49°66%0%E2 mph7 mph1%0.01 inHg—
Tue 11 AM64°64°50°61%0%ESE2 mph7 mph1%0.01 inHg—
Tue 12 PM66°66°50°56%0%SSE2 mph6 mph2%0.01 inHg—
Tue 1 PM70°70°50°48%0%S2 mph6 mph0%0.01 inHg—
Tue 2 PM72°72°49°44%0%S2 mph6 mph1%0.01 inHg—
Tue 3 PM74°74°49°41%0%S2 mph7 mph0%0.01 inHg—
Tue 4 PM74°75°49°41%0%S2 mph7 mph2%0.01 inHg—
Tue 5 PM74°74°49°42%0%S2 mph7 mph16%0.01 inHg—
Tue 6 PM71°71°49°46%0%SSE1 mph6 mph8%0.01 inHg—
Tue 7 PM68°68°50°52%0%SE0 mph5 mph6%0.01 inHg—
Tue 8 PM62°63°50°63%0%N0 mph3 mph6%0.01 inHg—
Tue 9 PM62°62°50°66%0%ENE1 mph3 mph1%0.01 inHg—
Tue 10 PM60°60°51°71%0%NE1 mph5 mph1%0.01 inHg—
Tue 11 PM59°59°50°71%0%NNE2 mph5 mph1%0.01 inHg—
Wed 12 AM58°58°49°72%0%NNE2 mph6 mph1%0.01 inHg—
Wed 1 AM58°58°49°72%0%NNE2 mph6 mph2%0.01 inHg—
Wed 2 AM57°57°48°72%0%NNE2 mph6 mph2%0.01 inHg—
Wed 3 AM56°57°48°73%0%NNE2 mph6 mph2%0.01 inHg—

The next 16 days

NWS grid published Sep 28, 2:23 AM EDT to day 8, the National Blend of Models to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2875°52°Sunny0%wind 10 mph · gusts 16 mph
  2. TueSep 2975°54°Sunny0%wind 5 mph
  3. WedSep 3075°56°Sunny1%wind 5 mph · gusts 10 mph
  4. ThuOct 177°60°Sunny6%wind 5 mph · gusts 10 mph
  5. FriOct 276°62°Chance Rain Showers41%0.08 inwind 2 mph · gusts 9 mph
  6. SatOct 372°61°Chance Rain Showers52%0.73 inwind 3 mph · gusts 12 mph
  7. SunOct 465°59°Showers And Thunderstorms Likely59%1.33 inwind 3 mph · gusts 12 mph
  8. MonOct 565°55°53%1.03 inwind 2 mph · gusts 10 mph
  9. TueOct 664°54°National Blend43%0.66 inwind 5 mph · gusts 10 mph
  10. WedOct 766°54°National Blend35%0.59 inwind 3 mph · gusts 9 mph
  11. ThuOct 8~67°56°Model mean0.80 in
  12. FriOct 9~66°50°Model mean
  13. SatOct 10~65°48°Model mean
  14. SunOct 11~70°47°Model mean
  15. MonOct 12~76°56°Model mean
  16. TueOct 13~74°56°Model mean

Right now

NWS grid for this hour · UV from the EPA · air quality from AirNow
  • Feels like45°
  • WindN 8 mph
  • Radar over this pointno reading
  • Humidity83%
  • Dew point44°
  • Pressure0.01 inHg
  • UV index—
  • Air quality—
  • Visibility10 mi
  • Sunrise and sunsetSunrise · Sunset · not yet up
  • Moonrise8:18 PMMoonset 9:30 AM
  • Moon phaseWaning gibbous95% lit

The National Blend of Models

NOAA NBM v5.0 · run of Sep 28, 2:00 AM EDT

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 2875°52°NWS grid 75° / 52°rain 0%wind 9 mph
  2. TueSep 2975°55°NWS grid 75° / 54°rain 0%wind 5 mph
  3. WedSep 3075°57°NWS grid 75° / 56°rain 1%wind 3 mph · gusts 10 mph
  4. ThuOct 176°60°NWS grid 77° / 60°rain 9%wind 3 mph · gusts 10 mph
  5. FriOct 276°63°NWS grid 76° / 62°rain 41%thunder 12%0.09 inwind 2 mph · gusts 8 mph
  6. SatOct 371°61°NWS grid 72° / 61°rain 53%0.78 inwind 3 mph · gusts 12 mph
  7. SunOct 466°60°NWS grid 65° / 59°rain 59%thunder 13%1.44 inwind 3 mph · gusts 12 mph
  8. MonOct 565°55°NWS grid 65° / 55°rain 53%thunder 17%1.10 inwind 3 mph · gusts 10 mph
  9. TueOct 664°54°Beyond the NWS gridrain 43%0.66 inwind 5 mph · gusts 10 mph
  10. WedOct 766°54°Beyond the NWS gridrain 35%0.59 inwind 3 mph · gusts 9 mph
  11. ThuOct 866°—Beyond the NWS gridrain 18%0.11 inwind 5 mph
41°59°77°TueWedThuFriSatSunMon

BlendNWS gridChance of rain, hourly

The models, side by side

HRRR Sep 27, 8:00 PM EDT · GFS Sep 27, 8:00 PM EDT · GEFS Sep 27, 8:00 PM EDT · ECMWF Sep 27, 8:00 AM EDT · ECMWF AI Sep 27, 8:00 PM EDT

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.

41°68°95°TueWedThuFriSatSunMon

DayNWS gridHRRRGFSGEFSECMWFECMWF AI
Today Sep 2875° 52°74° 55°79° 51°82° 51°78° 50°~78° 49°
Tue Sep 2975° 54°74° 56°79° 56°80° 55°80° 56°~80° 55°
Wed Sep 3075° 56°—82° 57°80° 58°81° 58°~81° 56°
Thu Oct 177° 60°—82° 62°80° 61°0.02 in82° 59°~81° 59°
Fri Oct 276° 62°0.08 in—82° 65°0.13 in81° 63°0.11 in86° 58°~83° 61°0.02 in
Sat Oct 372° 61°0.73 in—68° 67°1.25 in75° 66°0.41 in~85° 64°~73° 69°0.85 in
Sun Oct 465° 59°1.33 in—74° 66°0.45 in72° 64°0.40 in~69° 60°0.38 in~70° 67°2.02 in
Mon Oct 565° 55°1.03 in—72° 65°0.81 in73° 62°0.33 in~73° 62°0.57 in~78° 67°0.03 in
Tue Oct 6——71° 61°0.16 in66° 57°0.20 in~81° 67°~67° 51°
Wed Oct 7——64° 53°64° 54°0.24 in~72° 61°~68° 50°0.11 in
Thu Oct 8——~55° 51°1.68 in—~77° 61°0.09 in~69° 57°0.61 in
Fri Oct 9——~70° 56°—~58° 47°~71° 48°
Sat Oct 10——~65° 55°0.02 in—~55° 40°~73° 48°
Sun Oct 11——~75° 53°—~58° 38°~76° 51°
Mon Oct 12——~79° 55°—~44° 41°~74° 57°
Tue Oct 13——~74° 56°———

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 Toccoa (TOC) · 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 Tue Oct 13, 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 lean33%warmer 40% · Oct 202633% chance above normal · Oct to Dec0°20°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 2878° / 56°99° (2019)30° (1974)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 577° / 56°96° (1954)30° (1906)near normal most likely · days 8 to 1433% chance above normal · days 8 to 14
Oct 1275° / 51°90° (2017)30° (1906)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 1973° / 49°89° (2016)25° (1917)40% chance above normal · Oct 2026equal chances · Oct 2026
Oct 2670° / 49°88° (1950)25° (1913)40% chance above normal · Oct 2026equal chances · Oct 2026
Nov 267° / 43°87° (2003)18° (1954)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 965° / 42°89° (2003)15° (1969)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 1664° / 42°82° (1958)15° (1937)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 2360° / 40°80° (2025)9° (1950)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Nov 3060° / 38°80° (1998)11° (1976)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 756° / 37°78° (1943)1° (1962)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 1456° / 38°79° (1924)8° (1951)33% chance above normal · Oct to Dec33% chance above normal · Oct to Dec
Dec 2154° / 37°80° (1955)4° (1983)33% chance above normal · Oct to Dec33% 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 hLowsteady conditions
  • Sinus pressurenext 24 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayVery goodhot
  • HikingtodayIdealfine conditions
  • BikingtodayIdealfine conditions
  • GolftodayIdealfine conditions
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayIdealfine conditions
  • Beach and pooltodayIdealfine conditions
  • CampingtonightIdealfine conditions
  • StargazingtonightGoodbright moon

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayIdealfine conditions
  • GardeningtodayIdealfine conditions
  • Outdoor entertainingtodayIdealfine conditions
  • Drying laundry outsidetodayIdealfine conditions
  • Painting and outdoor projectstodayIdealfine conditions
  • FrosttonightLowmild

Pests

  • MosquitoestodayModeratewarm
  • TickstodayModeratewarm
  • Indoor pestsnext 24 hHighcool nights, warm days
  • Outdoor peststodayModeratewarm

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 fair.

Night ofRatingDarkClear hoursClear and moonlessMoon litTransparency (est.)DewStrongest wind
MondayFair8:46 PM to 6:03 AM9 of 9None94%Fair5 mph
TuesdayFair8:45 PM to 6:04 AM9 of 9None87%Fair3 mph
WednesdayFair8:43 PM to 6:05 AM4 of 91 h from 9:00 PM80%Fair2 mph
ThursdayFair8:42 PM to 6:06 AM5 of 92 h from 9:00 PM70%Fair2 h0 mph
FridayPoor8:40 PM to 6:06 AM0 of 9None60%8 h0 mph
SaturdayPoor8:39 PM to 6:07 AM0 of 9None50%9 h1 mph
SundayPoor8:37 PM to 6:08 AM0 of 9None39%9 h1 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
Mon7:01 AM to 7:11 AM7:11 AM to 8:00 AM6:49 PM to 7:38 PM7:38 PM to 7:47 PM
Tue7:02 AM to 7:12 AM7:12 AM to 8:01 AM6:47 PM to 7:36 PM7:36 PM to 7:46 PM
Wed7:03 AM to 7:13 AM7:13 AM to 8:02 AM6:46 PM to 7:35 PM7:35 PM to 7:44 PM
Thu7:04 AM to 7:13 AM7:13 AM to 8:02 AM6:44 PM to 7:33 PM7:33 PM to 7:43 PM
Fri7:04 AM to 7:14 AM7:14 AM to 8:03 AM6:43 PM to 7:32 PM7:32 PM to 7:42 PM
Sat7:05 AM to 7:15 AM7:15 AM to 8:04 AM6:42 PM to 7:31 PM7:31 PM to 7:40 PM
Sun7:06 AM to 7:16 AM7:16 AM to 8:05 AM6:40 PM to 7:29 PM7:29 PM to 7:39 PM
NESWSRSSMRMS
  • SR Sunrise 7:27 AM, 92° E
  • SS Sunset 7:22 PM, 268° W
  • MR Moonrise 8:18 PM, 68° ENE
  • MS Moonset 9:30 AM, 289° WNW
  • Waning gibbous, 95% 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: fly with caution (wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)). Next good stretch: Mon 8 AM to 7 PM, 11 hours.

Today: civil twilight for Part 107 6:57 AM to sunrise 7:27 AM, and sunset 7:22 PM to 7:52 PM. Anti-collision lighting is required in those minutes and at night.

Mon6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM

Good Caution No-fly

HourVerdictWind (mph)400 ft est. (mph)Gust (mph)RainVisibilityCloud allowsTempKpWhy
Mon 4 AMCaution819220%10 mi49°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Mon 5 AMCaution717200%10 mi48°gusts near or over your limit, night: lighting and night training required (107.29)
Mon 6 AMCaution717190%10 mi48°gusts near or over your limit, night: lighting and night training required (107.29)
Mon 7 AMNo-fly623260%10 mi48°gusts near or over your limit, wind at 400 ft near or over your limit, civil twilight: lighting required (107.29)
Mon 8 AMGood67110%10 mi48°nothing against it
Mon 9 AMGood5690%10 mi52°nothing against it
Mon 10 AMGood2360%10 mi56°nothing against it
Mon 11 AMGood1150%9 mi60°nothing against it
Mon 12 PMGood0050%9 mi63°nothing against it
Mon 1 PMGood0050%9 mi68°nothing against it
Mon 2 PMGood0050%9 mi72°nothing against it
Mon 3 PMGood0050%9 mi74°nothing against it
Mon 4 PMGood1150%9 mi74°nothing against it
Mon 5 PMGood1160%9 mi74°nothing against it
Mon 6 PMGood1160%9 mi71°nothing against it
Mon 7 PMCaution1580%9 mi67°night: lighting and night training required (107.29)
Mon 8 PMCaution1580%9 mi62°night: lighting and night training required (107.29)
Mon 9 PMCaution29110%9 mi60°night: lighting and night training required (107.29)
Mon 10 PMCaution314170%9 mi58°night: lighting and night training required (107.29)
Mon 11 PMCaution518220%9 mi56°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Tue 12 AMCaution518220%9 mi56°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Tue 1 AMCaution518220%9 mi55°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Tue 2 AMCaution518210%9 mi55°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training required (107.29)
Tue 3 AMCaution518210%8 mi55°wind at 400 ft near or over your limit, gusts near or over your limit, night: lighting and night training 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

  • Mon 6 AM to 10 AM 4 hours, every hour within the rules
  • Mon 10 PM to Tue 6 AM 8 hours, every hour within the rules
  • Wed 4 AM to 10 AM 6 hours, every hour within the rules
  • Wed 12 PM to 6 PM 6 hours, every hour within the rules
  • Thu 12 PM to 6 PM 6 hours, every hour within the rules
Mon6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM
Wed12 AM6 AM12 PM6 PM
Thu12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
MondayDry0%0.00 in32%6 mph4 dGood
TuesdayDry0%0.00 in41%2 mph3 d
WednesdayDry1%0.00 in51%5 mph2 d
ThursdayDry2%0.00 in54%5 mph1 d
FridayShowers possible41%0.08 in60%2 mph
SaturdayWet52%0.73 in75%3 mph
SundayWet59%1.33 in93%3 mph
MondayWet53%1.03 in84%2 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 Monday, rated good.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Mon Good1:33 AM to 3:33 AM1:58 PM to 3:58 PM9:00 AM to 10:00 AM7:48 PM to 8:48 PM 95%7:27 AM, 7:22 PM
Tue Fair2:25 AM to 4:25 AM2:52 PM to 4:52 PM10:11 AM to 11:11 AM8:27 PM to 9:27 PM 90%7:27 AM, 7:21 PM
Wed Poor3:21 AM to 5:21 AM3:50 PM to 5:50 PM11:24 AM to 12:24 PM9:13 PM to 10:13 PM 83%7:28 AM, 7:19 PM
Thu Fair4:21 AM to 6:21 AM4:52 PM to 6:52 PM12:34 PM to 1:34 PM10:08 PM to 11:08 PM 74%7:29 AM, 7:18 PM
Fri Fair5:23 AM to 7:23 AM5:55 PM to 7:55 PM1:39 PM to 2:39 PM11:12 PM to 12:12 AM 64%7:30 AM, 7:16 PM
Sat Fair6:26 AM to 8:26 AM6:56 PM to 8:56 PM2:35 PM to 3:35 PM 54%7:30 AM, 7:15 PM
Sun Fair7:26 AM to 9:26 AM7:54 PM to 9:54 PM12:22 AM to 1:22 AM3:22 PM to 4:22 PM 43%7:31 AM, 7:14 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. Overnight48° · N 9 mph

    Mostly clear, with a low around 48. North wind around 9 mph.

  2. Monday75° · NNW 0–7 mph

    Sunny, with a high near 75. North northwest wind 0 to 7 mph.

  3. Monday Night52° · ENE 1–5 mph

    Mostly clear, with a low around 52. East northeast wind 1 to 5 mph.

  4. Tuesday75° · ESE 2 mph

    Sunny, with a high near 75. East southeast wind around 2 mph.

  5. Tuesday Night54° · NE 0–3 mph

    Clear, with a low around 54. Northeast wind 0 to 3 mph.

  6. Wednesday75° · 1% · E 5 mph

    Sunny, with a high near 75.

  7. Wednesday Night56° · 1% · E 2 mph

    Mostly clear, with a low around 56.

  8. Thursday77° · 1% · E 1–5 mph

    Sunny, with a high near 77.

  9. Thursday Night60° · 9% · E 2 mph

    Partly cloudy, with a low around 60.

  10. Friday76° · 41% · ESE 2 mph

    A chance of rain showers after 8am. Partly sunny, with a high near 76. Chance of precipitation is 40%.

  11. Friday Night62° · 41% · E 1 mph

    A chance of rain showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

  12. Saturday72° · 52% · ENE 0–3 mph

    A chance of rain showers. Partly sunny, with a high near 72. Chance of precipitation is 50%.

  13. Saturday Night61° · 52% · E 2 mph

    A chance of rain showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.

  14. Sunday65° · 59% · E 3 mph

    A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 65.

The forecaster’s discussion

NWS Greenville-Spartanburg, SC · issued Sep 28, 2:41 AM EDT

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.

What Has Changed

Expected onset of rain has slowed slightly from Thursday night or early Friday morning to the daylight hours on Friday. Considerable uncertainty still remains in the forecast, so take this with a grain of salt.

KEY Messages

1. Dry weather expected through the week, with temperatures steadily warming to above normal by mid-week. Rain chances could return as early as Friday, but become more likely over the weekend.

Discussion

Key message 1: Dry weather expected through the week, with temperatures steadily warming to above normal by mid-week. Rain chances could return as early as Friday, but become more likely over the weekend.

A slow-moving Nor'easter remains in place off the southern New Jersey coast, driving sustained northerly CAA that has kept the Carolinas clear, dry, and relatively cool. Expect another clear and cool night, with lows in the 50s across the low terrain, and higher elevations across Appalachia falling well into the 40s.

Not much change to the forecast thinking tonight, with the bulk of guidance not showing much change to the pattern for the next few days. Through Tuesday afternoon, deterministic models are in good agreement that the sfc low will drift northeastward and weaken, while upper ridging simultaneously builds across the eastern CONUS. There's good agreement on steadily increasing temperatures in tandem with the building ridge, but generally dry conditions through at least Thursday. Moisture should steadily increase the second half of the week, but the suppressive effect of the ridge means it'll take a while for this to manifest as anything more than increasing humidity. The latest round of long-range ensemble guidance seems to more heavily support the deterministic GFS's faster solution, with rain arriving as early as Friday evening...while some 1/2 to 2/3 of the overall ensemble solutions still favor rain arriving later...during the day Saturday.

Meanwhile, expansive surface high pressure developing over the northern Great Plains as early as Thursday should migrate into the Great Lakes and New England through the end of the week. The signal remains strong for this high to become well-placed for a synoptically-induced cold air damming event by Saturday. The onset of rainfall would contribute strongly to development of a wedge, so the nature of such a CAD event will be tied to how the forecast for rainfall, as described above, evolves over the coming days.

Aviation · 06Z Monday Through Friday

At KCLT and elsewhere: VFR conditions with mostly clear skies should continue thru the 06z TAF period. Mtn valley fog/low stratus is likely to develop again in the usual areas overnight, but like the past few mornings, it is not expected to reach KAVL. Otherwise, winds will be light (generally 5 kts or less) and continue to favor a NWLY to NLY direction thru most of the period. They will become light and VRB to calm later this evening at most sites.

Outlook: Dry, VFR conditions should persist thru Thursday. Showers and associated restrictions may return by Friday. Mtn valley fog/low stratus remains possible each morning.

GSP Watches / Warnings / Advisories

GA...None. NC...None. SC...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 · Mon Sep 28No risk area
  2. Day 2 · Tue Sep 29No risk area
  3. Day 3 · Wed Sep 30No risk area
  4. Day 4 · Thu Oct 1No risk area
  5. Day 5 · Fri Oct 2No risk area
  6. Day 6 · Sat Oct 3No risk area
  7. Day 7 · Sun Oct 4No risk area
  8. Day 8 · Mon Oct 5No risk area

Rainfall

  1. Day 1 · Mon Sep 28Under 0.01 in
  2. Day 2 · Tue Sep 29Under 0.01 in
  3. Day 3 · Wed Sep 30Under 0.01 in
  4. Day 4-5 · Oct 1–Oct 20.25 in
  5. Day 6-7 · Oct 3–Oct 42.00 in

The rainfall forecast on the map, days 1 to 7

Six to fourteen days

  1. Days 6–10 · Temperature33% chance above normalOct 3–Oct 7
  2. Days 6–10 · Precipitation50% chance above normalOct 3–Oct 7
  3. Days 8–14 · TemperatureNear normal most likelyOct 5–Oct 11
  4. Days 8–14 · Precipitation33% chance above normalOct 5–Oct 11

Drought

  1. Drought Monitor, map of Sep 22D1 Moderate drought
  2. Outlook for Sep 2026Drought persists

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

Frost and climate

NOAA 1991-2020 normals, Clayton 1 Ssw

The last spring freeze (32°F) usually comes around April 10 and the first fall freeze around October 29: a growing season of about 203 days.

One fall in ten brings a freeze by October 15; one spring in ten still has one after May 1.

Climate of 34.85, -83.50: normals, records and every month

Everything else on the grid

NWS forecast grid · 31 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.

ElementMonTueWedThuFriSatSunMon
HeatRisk max1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor1 · Minor
Wet bulb globe temperature max66°68°70°72°72°70°65°65°
Heat index max74°75°75°77°76°71°
Wind chill min45°
Chance of thunder max0%0%0%2%7%12%15%13%
Visibility min9 mi7 mi
Pressure min0.01 inHg0.01 inHg0.01 inHg0.01 inHg0.01 inHg0.01 inHg0.01 inHg0.01 inHg
Mixing height max4,600 ft4,900 ft5,300 ft5,400 ft5,000 ft3,800 ft2,000 ft2,600 ft
Transport wind max12 mph6 mph7 mph8 mph6 mph8 mph10 mph7 mph
Twenty-foot wind max10 mph5 mph5 mph5 mph2 mph3 mph3 mph2 mph
Davis stability index max11111111
Atmospheric dispersion index max2933424933372722
Low visibility risk max544777910
Stability max77777666

Against the record

NOAA GHCN · Toccoa (TOC) · 21 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
Mon Sep 2875° / 52°79° / 60°93° (1954)40° (1940)
Tue Sep 2975° / 54°80° / 59°93° (1941)40° (1942)
Wed Sep 3075° / 56°78° / 57°97° (1904)34° (1967)
Thu Oct 177° / 60°78° / 56°93° (2019)37° (1924)
Fri Oct 276° / 62°77° / 55°93° (1998)35° (1966)
Sat Oct 372° / 61°77° / 56°96° (2019)30° (1974)
Sun Oct 465° / 59°78° / 57°99° (2019)31° (1974)
Mon Oct 565° / 55°78° / 56°96° (1954)36° (1968)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Mon7:01 AM7:27 AM7:22 PM7:47 PM11 h 55 min Waning gibbous · 95% lit
Tue7:02 AM7:27 AM7:21 PM7:46 PM11 h 54 min Waning gibbous · 90% lit
Wed7:03 AM7:28 AM7:19 PM7:44 PM11 h 51 min Waning gibbous · 83% lit
Thu7:04 AM7:29 AM7:18 PM7:43 PM11 h 49 min Waning gibbous · 74% lit
Fri7:04 AM7:30 AM7:16 PM7:42 PM11 h 46 min Waning gibbous · 64% lit
Sat7:05 AM7:30 AM7:15 PM7:40 PM11 h 45 min Last quarter · 54% lit
Sun7:06 AM7:31 AM7:14 PM7:39 PM11 h 43 min Last quarter · 43% lit
Mon7:07 AM7:32 AM7:12 PM7:38 PM11 h 40 min Waning crescent · 33% 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