Current weather · Sep 26, 3:49 AM GMT+1

Cwmbach, United Kingdom

1.8 mi from Aberdare, United Kingdom

49°

Partly cloudyFeels like 47° · Humidity 91%MET Norway forecast for this hourForecast by MET Norway
High
60°
Low
49°
Precip today
0.00 in
Sunrise
7:06 AM
Sunset
7:03 PM

Hour by hour

MET Norway, hourly to about 60 hours, then every six hours

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

Every hour as a table48 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Sat 3 AM49°47°46°91%—WNW6 mph92%30.18 inHg—
Sat 4 AM49°46°46°91%—WNW6 mph98%30.18 inHg—
Sat 5 AM49°46°46°90%—WNW6 mph81%30.18 inHg—
Sat 6 AM49°46°46°89%—WNW6 mph100%30.19 inHg—
Sat 7 AM49°47°46°89%—W6 mph92%30.19 inHg—
Sat 8 AM51°49°47°87%—W6 mph84%30.20 inHg—
Sat 9 AM55°53°48°78%—W7 mph81%30.20 inHg—
Sat 10 AM57°55°49°74%—WSW7 mph100%30.21 inHg—
Sat 11 AM58°57°48°68%—WSW9 mph100%30.22 inHg—
Sat 12 PM59°59°47°65%—WSW8 mph100%30.21 inHg—
Sat 1 PM60°60°47°64%—SW8 mph100%30.20 inHg—
Sat 2 PM60°60°47°62%—SW9 mph100%30.20 inHg—
Sat 3 PM60°60°47°62%—SW8 mph99%30.19 inHg—
Sat 4 PM60°60°47°63%—SW8 mph89%30.18 inHg—
Sat 5 PM59°57°47°66%—SW8 mph73%30.17 inHg—
Sat 6 PM57°56°48°72%—SW6 mph79%30.16 inHg—
Sat 7 PM54°53°49°84%—SW4 mph64%30.16 inHg—
Sat 8 PM52°52°49°89%—SW2 mph70%30.16 inHg—
Sat 9 PM52°52°49°89%—SW2 mph77%30.16 inHg—
Sat 10 PM52°52°49°89%—S3 mph98%30.15 inHg—
Sat 11 PM52°52°50°90%—S3 mph99%30.14 inHg—
Sun 12 AM52°52°50°91%—SSE3 mph99%30.12 inHg—
Sun 1 AM52°50°50°93%—SE5 mph98%30.09 inHg—
Sun 2 AM50°48°49°97%—SE6 mph84%30.08 inHg—
Sun 3 AM49°46°49°99%—SE7 mph92%30.05 inHg—
Sun 4 AM50°47°50°99%—SE8 mph96%30.02 inHg—
Sun 5 AM50°47°50°98%—SE10 mph97%29.99 inHg—
Sun 6 AMScattered light rain showers50°46°49°97%—0.00 inSE10 mph75%29.97 inHg—
Sun 7 AMLight rain49°45°49°97%—0.01 inSE11 mph99%29.95 inHg—
Sun 8 AMLight rain51°46°49°95%—0.01 inSE12 mph95%29.93 inHg—
Sun 9 AMModerate rain53°49°51°94%—0.03 inSE12 mph100%29.92 inHg—
Sun 10 AMModerate rain54°51°54°98%—0.02 inSSE13 mph98%29.90 inHg—
Sun 11 AMModerate rain57°53°56°96%—0.02 inSSE15 mph97%29.87 inHg—
Sun 12 PMModerate rain58°56°56°93%—0.03 inS14 mph99%29.84 inHg—
Sun 1 PMHeavy rain59°59°57°93%—0.07 inS14 mph100%29.82 inHg—
Sun 2 PMModerate rain58°55°58°98%—0.03 inS14 mph100%29.81 inHg—
Sun 3 PMScattered light rain showers59°59°59°98%—0.01 inSW16 mph86%29.81 inHg—
Sun 4 PMLight rain60°60°58°93%—0.01 inWSW13 mph97%29.82 inHg—
Sun 5 PM59°56°57°94%—WSW11 mph99%29.84 inHg—
Sun 6 PM58°55°56°95%—WSW12 mph97%29.86 inHg—
Sun 7 PM56°53°55°98%—WSW10 mph97%29.89 inHg—
Sun 8 PM55°52°54°98%—W9 mph99%29.92 inHg—
Sun 9 PM54°51°53°97%—W8 mph41%29.95 inHg—
Sun 10 PM52°50°51°96%—WNW6 mph73%29.98 inHg—
Sun 11 PM51°48°50°96%—WNW6 mph66%29.99 inHg—
Mon 12 AM50°48°49°96%—WNW5 mph23%30.00 inHg—
Mon 1 AM49°47°47°95%—NW4 mph81%30.01 inHg—
Mon 2 AM48°46°46°94%—NNW5 mph91%30.02 inHg—

The next 16 days

MET Norway forecast updated Sep 26, 2:17 AM GMT+1 to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2660°49°Partly cloudy—wind 9 mph
  2. SunSep 2760°47°Heavy rain—0.24 inwind 16 mph
  3. MonSep 2859°50°Partly cloudy—wind 7 mph
  4. TueSep 2963°61°Rain—0.84 inwind 15 mph
  5. WedSep 3058°51°Rain showers—0.90 inwind 16 mph
  6. ThuOct 158°53°Light rain showers—0.14 inwind 14 mph
  7. FriOct 257°52°Heavy rain—0.29 inwind 11 mph
  8. SatOct 360°50°Cloudy—wind 8 mph
  9. SunOct 460°48°Partly cloudy—wind 3 mph
  10. MonOct 558°44°Partly cloudy—wind 6 mph
  11. TueOct 6~58°49°Model mean
  12. WedOct 7~60°48°Model mean
  13. ThuOct 8~58°48°Model mean
  14. FriOct 9~58°48°Model mean0.05 in
  15. SatOct 10~58°46°Model mean
  16. SunOct 11~66°49°Model mean

Right now

MET Norway forecast for this hour
  • Feels like47°
  • WindWNW 6 mph
  • Humidity91%
  • Dew point46°
  • Pressure30.18 inHg
  • UV index0 · Lowclear-sky peak 3 today
  • Sunrise and sunsetSunrise · Sunset · not yet up
  • Moonrise6:41 PMMoonset 6:45 AM
  • Moon phaseFull moon100% lit

The models, side by side

GFS Sep 25, 7:00 PM GMT+1 · GEFS Sep 25, 7:00 PM GMT+1 · ECMWF Sep 25, 1:00 PM GMT+1 · ECMWF AI Sep 25, 1:00 PM GMT+1

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°55°68°SunMonTueWedThuFriSat

DayNWS gridGFSGEFSECMWFECMWF AI
Today Sep 2660° 49°60° 46°60° 47°59° 47°~62° 47°
Sun Sep 2760° 47°0.24 in58° 46°0.14 in59° 47°0.15 in58° 50°0.22 in~60° 50°0.25 in
Mon Sep 2859° 50°58° 45°60° 45°59° 46°~60° 46°
Tue Sep 2963° 61°0.84 in62° 44°0.74 in67° 46°0.14 in66° 49°1.01 in~67° 52°0.50 in
Wed Sep 3058° 51°0.90 in60° 51°1.01 in61° 52°0.44 in60° 52°0.81 in~63° 58°0.69 in
Thu Oct 158° 53°0.14 in56° 47°0.20 in59° 49°0.09 in58° 49°0.15 in~59° 50°0.12 in
Fri Oct 257° 52°0.29 in58° 48°0.02 in60° 49°0.03 in~57° 53°0.35 in~61° 50°0.04 in
Sat Oct 360° 50°61° 45°61° 47°0.01 in~60° 50°~62° 50°0.01 in
Sun Oct 460° 48°62° 47°61° 48°0.11 in~61° 48°~63° 49°
Mon Oct 558° 44°63° 47°60° 48°0.03 in~58° 42°~59° 49°
Tue Oct 6—~63° 48°—~52° 49°~58° 51°
Wed Oct 7—~62° 49°—~58° 47°0.02 in~59° 48°
Thu Oct 8—~59° 44°—~56° 49°~59° 51°
Fri Oct 9—~61° 45°—~54° 45°~61° 55°0.13 in
Sat Oct 10—~63° 46°—~56° 45°~54° 47°
Sun Oct 11—~66° 49°———

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.

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 hHighhumid
  • Sinus pressurenext 24 hModeratepressure swing
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayLowmild
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightIdealcool, quiet night

Outdoors

  • RunningtodayIdealfine conditions
  • HikingtodayIdealfine conditions
  • BikingtodayIdealfine conditions
  • GolftodayIdealfine conditions
  • FishingtodayIdealfine conditions
  • Boating and paddlingtodayIdealfine conditions
  • Beach and pooltodayPoorcool
  • CampingtonightIdealfine conditions
  • StargazingtonightPoorovercast

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

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

Pests

  • MosquitoestodayHighwarm
  • TickstodayHighwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayModeratehumid

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
SaturdayPoor8:56 PM to 5:14 AM0 of 8None100%8 h8 mph
SundayPoor8:53 PM to 5:16 AM0 of 8None98%8 h8 mph
MondayFair8:51 PM to 5:18 AM8 of 8None95%Poor9 mph
TuesdayPoor8:48 PM to 5:20 AM0 of 8None89%8 h16 mph
WednesdayPoor8:46 PM to 5:22 AM0 of 8None81%8 h11 mph
ThursdayPoor8:43 PM to 5:24 AM0 of 8None72%4 h10 mph
FridayPoor8:41 PM to 5:25 AM0 of 8None62%8 h8 mph
SaturdayPoor8:39 PM to 5:27 AM0 of 8None52%3 mph
SundayFair8:36 PM to 5:29 AM4 of 8None41%Poor4 h3 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
Sat6:33 AM to 6:46 AM6:46 AM to 7:50 AM6:19 PM to 7:23 PM7:23 PM to 7:36 PM
Sun6:34 AM to 6:47 AM6:47 AM to 7:52 AM6:16 PM to 7:21 PM7:21 PM to 7:34 PM
Mon6:36 AM to 6:49 AM6:49 AM to 7:54 AM6:14 PM to 7:19 PM7:19 PM to 7:32 PM
Tue6:38 AM to 6:51 AM6:51 AM to 7:56 AM6:12 PM to 7:16 PM7:16 PM to 7:29 PM
Wed6:39 AM to 6:52 AM6:52 AM to 7:57 AM6:09 PM to 7:14 PM7:14 PM to 7:27 PM
Thu6:41 AM to 6:54 AM6:54 AM to 7:59 AM6:07 PM to 7:12 PM7:12 PM to 7:25 PM
Fri6:43 AM to 6:55 AM6:55 AM to 8:01 AM6:04 PM to 7:10 PM7:10 PM to 7:22 PM
NESWSRSSMRMS
  • SR Sunrise 7:06 AM, 91° E
  • SS Sunset 7:03 PM, 269° W
  • MR Moonrise 6:41 PM, 83° E
  • MS Moonset 6:45 AM, 272° W
  • Full moon, 100% 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.

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

  • Sat 9 AM to 7 PM 10 hours, every hour within the rules
  • Mon 12 PM to 7 PM 7 hours, every hour within the rules
  • Sat 1 PM to 7 PM 6 hours, every hour within the rules
  • Mon 1 PM to 3 PM 2 hours, every hour within the rules
Sat6 AM12 PM6 PM
Sun12 AM6 AM12 PM6 PM
Mon12 AM6 AM12 PM6 PM
Tue12 AM6 AM12 PM6 PM

Good Marginal No

Field days

DayDaytimeChance of rainRainLowest humidityStrongest windDry days in a rowHay drying
SaturdayDry0.00 in62%9 mph1 d
SundayWet0.24 in93%16 mph
MondayDry0.00 in59%7 mph1 d
TuesdayWet0.84 in90%15 mph
WednesdayWet0.90 in91%11 mph
ThursdayShowers possible0.14 in77%14 mph
FridayWet0.29 in98%11 mph
SaturdayDry0.00 in65%5 mph3 d
SundayDry0.00 in69%2 mph2 d
MondayDry0.00 in78%6 mph1 d

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 Saturday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sat Best11:29 PM to 1:29 AM11:51 AM to 1:51 PM6:15 AM to 7:15 AM6:11 PM to 7:11 PM 100%7:06 AM, 7:03 PM
Sun Best12:14 AM to 2:14 AM12:37 PM to 2:37 PM7:36 AM to 8:36 AM6:24 PM to 7:24 PM 99%7:08 AM, 7:01 PM
Mon Good1:01 AM to 3:01 AM1:26 PM to 3:26 PM9:00 AM to 10:00 AM6:39 PM to 7:39 PM 96%7:09 AM, 6:58 PM
Tue Good1:52 AM to 3:52 AM2:19 PM to 4:19 PM10:28 AM to 11:28 AM7:00 PM to 8:00 PM 91%7:11 AM, 6:56 PM
Wed Fair2:48 AM to 4:48 AM3:17 PM to 5:17 PM11:56 AM to 12:56 PM7:29 PM to 8:29 PM 84%7:13 AM, 6:54 PM
Thu Fair3:47 AM to 5:47 AM4:18 PM to 6:18 PM1:20 PM to 2:20 PM8:12 PM to 9:12 PM 76%7:14 AM, 6:51 PM
Fri Fair4:49 AM to 6:49 AM5:21 PM to 7:21 PM2:30 PM to 3:30 PM9:12 PM to 10:12 PM 66%7:16 AM, 6:49 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index · Solunar tables for Cwmbach, by month

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

Written here from the MET Norway forecast
  1. Tonight49° · WNW 6 mph

    Partly cloudy. Low near 9°C. Westnorthwest wind around 10 km/h.

  2. Saturday60° · WSW 6–9 mph

    Partly cloudy. High near 16°C. Westsouthwest wind 9 to 14 km/h.

  3. Saturday Night49° · S 2–9 mph

    Partly cloudy. Low near 10°C. South wind 4 to 15 km/h.

  4. Sunday60° · S 10–16 mph

    Heavy rain. High near 15°C. South wind 16 to 26 km/h. Precipitation around 6 mm.

  5. Sunday Night47° · WNW 4–12 mph

    Cloudy. Low near 8°C. Westnorthwest wind 7 to 19 km/h.

  6. Monday59° · ENE 3–7 mph

    Partly cloudy. High near 15°C. Eastnortheast wind 5 to 11 km/h.

  7. Monday Night50° · E 2–9 mph

    Rain showers. Low near 10°C. East wind 4 to 15 km/h. Precipitation around 1.2 mm.

  8. Tuesday63° · ESE 11–15 mph

    Rain. High near 17°C. Eastsoutheast wind 17 to 24 km/h. Precipitation around 5 mm.

  9. Tuesday Night61° · SSE 14–16 mph

    Heavy rain. Low near 16°C. Southsoutheast wind 22 to 25 km/h. Precipitation around 30 mm.

  10. Wednesday58° · SSW 7–11 mph

    Rain showers. High near 15°C. Southsouthwest wind 11 to 18 km/h. Precipitation around 5 mm.

  11. Wednesday Night51° · SW 7–11 mph

    Rain. Low near 11°C. Southwest wind 12 to 18 km/h. Precipitation around 4 mm.

  12. Thursday58° · SW 8–14 mph

    Light rain showers. High near 15°C. Southwest wind 13 to 23 km/h. Precipitation around 1.7 mm.

  13. Thursday Night53° · SW 9–10 mph

    Rain. Low near 12°C. Southwest wind 15 to 16 km/h. Precipitation around 1.8 mm.

  14. Friday57° · SW 11–11 mph

    Heavy rain. High near 14°C. Southwest wind 17 to 18 km/h. Precipitation around 6 mm.

  15. Friday Night52° · W 4–7 mph

    Cloudy. Low near 11°C. West wind 7 to 12 km/h.

  16. Saturday60° · W 2–5 mph

    Cloudy. High near 16°C. West wind 4 to 8 km/h.

  17. Saturday Night50° · NNW 2–3 mph

    Partly cloudy. Low near 10°C. Northnorthwest wind 4 to 5 km/h.

  18. Sunday60° · ESE 1–2 mph

    Partly cloudy. High near 16°C. Eastsoutheast wind 2 to 3 km/h.

  19. Sunday Night48° · ENE 1–3 mph

    Mostly clear. Low near 9°C. Eastnortheast wind 1 to 5 km/h.

  20. Monday58° · NE 3–6 mph

    Partly cloudy. High near 14°C. Northeast wind 5 to 9 km/h.

Climate

Climate of Cwmbach: normals, records and every month

Everything else on the grid

MET Norway · 12 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.

ElementSatSunMonTueWedThuFriSatSunMon
Pressure min30.14 inHg29.81 inHg30.00 inHg29.75 inHg29.72 inHg29.90 inHg30.28 inHg30.37 inHg30.49 inHg30.48 inHg

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sat6:33 AM7:06 AM7:03 PM7:36 PM11 h 57 min Full moon · 100% lit
Sun6:34 AM7:08 AM7:01 PM7:34 PM11 h 53 min Full moon · 99% lit
Mon6:36 AM7:09 AM6:58 PM7:32 PM11 h 49 min Waning gibbous · 96% lit
Tue6:38 AM7:11 AM6:56 PM7:29 PM11 h 45 min Waning gibbous · 91% lit
Wed6:39 AM7:13 AM6:54 PM7:27 PM11 h 41 min Waning gibbous · 84% lit
Thu6:41 AM7:14 AM6:51 PM7:25 PM11 h 37 min Waning gibbous · 76% lit
Fri6:43 AM7:16 AM6:49 PM7:22 PM11 h 33 min Waning gibbous · 66% lit
Sat6:44 AM7:18 AM6:47 PM7:20 PM11 h 29 min Last quarter · 56% lit
Sun6:46 AM7:19 AM6:45 PM7:18 PM11 h 26 min Last quarter · 45% lit
Mon6:47 AM7:21 AM6:42 PM7:16 PM11 h 21 min Waning crescent · 35% lit

Forecast from MET Norway’s Locationforecast (the Norwegian Meteorological Institute, CC BY 4.0), built on the ECMWF model and refined by MET, updated through the day; the written periods are composed here from its hourly data. Global model lines from NOAA’s GFS and ECMWF’s open data where they are ingested. 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