Current weather · Sep 27, 12:08 PM GMT+13

Mulifanua, Samoa

18 mi from Apia, Samoa

81°

Partly cloudyFeels like 85° · Humidity 74%MET Norway forecast for this hourForecast by MET Norway
High
81°
Low
78°
Precip today
0.00 in
Sunrise
6:15 AM
Sunset
6:24 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
Sun 12 PM81°85°72°74%—SE24 mph68%30.00 inHg—
Sun 1 PM80°85°72°75%—SE25 mph86%29.98 inHg—
Sun 2 PM80°85°72°76%—SE25 mph87%29.96 inHg—
Sun 3 PM80°85°72°77%—SE26 mph94%29.94 inHg—
Sun 4 PM80°84°72°79%—SE27 mph95%29.93 inHg—
Sun 5 PM80°84°73°79%—SE27 mph70%29.93 inHg—
Sun 6 PM79°84°73°80%—SE26 mph81%29.95 inHg—
Sun 7 PM79°84°73°81%—SE26 mph86%29.97 inHg—
Sun 8 PM78°78°73°83%—SE27 mph90%29.99 inHg—
Sun 9 PM78°78°73°83%—SE28 mph87%30.01 inHg—
Sun 10 PM78°78°72°83%—SE28 mph68%30.02 inHg—
Sun 11 PM78°78°72°83%—SE29 mph66%30.03 inHg—
Mon 12 AM78°78°72°83%—SE27 mph69%30.02 inHg—
Mon 1 AM78°78°72°83%—SE30 mph73%30.00 inHg—
Mon 2 AM78°78°72°83%—SE29 mph67%29.98 inHg—
Mon 3 AM78°78°72°84%—SE30 mph73%29.95 inHg—
Mon 4 AM78°78°72°84%—SE30 mph54%29.95 inHg—
Mon 5 AM78°78°72°84%—SE30 mph59%29.95 inHg—
Mon 6 AM78°78°72°83%—SE30 mph43%29.97 inHg—
Mon 7 AM78°78°72°82%—SE29 mph59%30.00 inHg—
Mon 8 AM78°78°72°81%—SE29 mph64%30.02 inHg—
Mon 9 AM79°83°72°79%—SE28 mph31%30.03 inHg—
Mon 10 AM80°84°72°77%—SE28 mph31%30.02 inHg—
Mon 11 AMScattered moderate rain showers80°84°71°76%—0.02 inSE28 mph53%30.01 inHg—
Mon 12 PMModerate rain80°84°71°76%—0.01 inSE28 mph89%29.99 inHg—
Mon 1 PMScattered light rain showers80°85°72°76%—0.00 inSE28 mph47%29.97 inHg—
Mon 2 PMScattered light rain showers80°85°72°76%—0.00 inSE28 mph48%29.95 inHg—
Mon 3 PM80°85°72°76%—SE28 mph96%29.92 inHg—
Mon 4 PM80°85°72°77%—SE28 mph91%29.92 inHg—
Mon 5 PM80°85°73°78%—SE26 mph84%29.93 inHg—
Mon 6 PM80°85°73°79%—SE27 mph24%29.94 inHg—
Mon 7 PM79°84°73°81%—SE26 mph49%29.97 inHg—
Mon 8 PM79°84°73°82%—SE26 mph63%29.99 inHg—
Mon 9 PM79°84°73°81%—SE24 mph52%30.01 inHg—
Mon 10 PM79°84°73°81%—SE23 mph35%30.02 inHg—
Mon 11 PM79°84°73°81%—SE22 mph25%30.02 inHg—
Tue 12 AM79°79°73°81%—SE22 mph31%30.01 inHg—
Tue 1 AM78°78°72°82%—SE21 mph38%29.99 inHg—
Tue 2 AM79°79°73°82%—SE21 mph88%29.97 inHg—
Tue 3 AM79°79°73°82%—SE21 mph60%29.95 inHg—
Tue 4 AM79°79°73°82%—SE21 mph34%29.95 inHg—
Tue 5 AM79°79°73°82%—SE21 mph30%29.96 inHg—
Tue 6 AM79°79°73°82%—SE22 mph59%29.97 inHg—
Tue 7 AM79°79°73°82%—SE21 mph58%29.99 inHg—
Tue 8 AM79°84°73°81%—SE21 mph51%30.01 inHg—
Tue 9 AMLight rain80°85°73°78%—0.01 inESE22 mph95%30.01 inHg—
Tue 10 AMModerate rain81°86°73°76%—0.02 inESE22 mph98%30.01 inHg—
Tue 11 AMModerate rain81°87°73°75%—0.02 inSE24 mph99%30.00 inHg—

The next 16 days

MET Norway forecast updated Sep 27, 8:17 AM GMT+13 to day 10, the mean of GFS, ECMWF, ECMWF AI to day 16
  1. TodaySep 2781°78°Partly cloudy—wind 29 mph
  2. MonSep 2880°78°Rain showers—0.04 inwind 30 mph
  3. TueSep 2981°79°Light rain—0.14 inwind 25 mph
  4. WedSep 3081°78°Partly cloudy—wind 25 mph
  5. ThuOct 182°78°Cloudy—wind 18 mph
  6. FriOct 281°79°Partly cloudy—0.02 inwind 15 mph
  7. SatOct 380°77°Partly cloudy—0.02 inwind 15 mph
  8. SunOct 479°78°Rain showers—0.09 inwind 17 mph
  9. MonOct 581°78°Partly cloudy—wind 17 mph
  10. TueOct 680°78°Mostly clear—wind 18 mph
  11. WedOct 7~81°79°Model mean0.06 in
  12. ThuOct 8~81°79°Model mean0.09 in
  13. FriOct 9~80°79°Model mean0.05 in
  14. SatOct 10~81°79°Model mean0.04 in
  15. SunOct 11~81°79°Model mean0.16 in
  16. MonOct 12~81°79°Model mean0.88 in

Right now

MET Norway forecast for this hour
  • Feels like85°
  • WindSE 24 mph
  • Humidity74%
  • Dew point72°
  • Pressure30.00 inHg
  • UV index14 · Extremeclear-sky peak 14 today
  • Sunrise and sunsetSunrise · Sunset
  • Moonrise6:47 PMMoonset 6:11 AM
  • Moon phaseFull moon100% lit

The models, side by side

GFS Sep 27, 1:00 AM GMT+13 · GEFS Sep 27, 1:00 AM GMT+13 · ECMWF Sep 27, 1:00 AM GMT+13 · ECMWF AI Sep 27, 1:00 AM GMT+13

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.

77°82°86°MonTueWedThuFriSatSun

DayNWS gridGFSGEFSECMWFECMWF AI
Today Sep 2781° 78°80° 80°0.59 in79° 78°0.29 in82° 78°0.04 in~80° 79°0.19 in
Mon Sep 2880° 78°0.04 in81° 79°0.70 in79° 78°0.43 in82° 78°0.05 in~80° 78°0.24 in
Tue Sep 2981° 79°0.14 in81° 80°0.79 in79° 79°0.42 in82° 78°0.06 in~81° 79°0.15 in
Wed Sep 3081° 78°81° 81°0.30 in80° 79°0.20 in82° 78°~81° 79°0.06 in
Thu Oct 182° 78°81° 79°0.03 in79° 78°0.07 in82° 77°~81° 78°0.09 in
Fri Oct 281° 79°0.02 in81° 80°0.13 in79° 78°0.08 in82° 77°0.02 in~81° 78°0.08 in
Sat Oct 380° 77°0.02 in81° 80°0.17 in79° 78°0.08 in~82° 78°~81° 79°0.05 in
Sun Oct 479° 78°0.09 in81° 80°0.09 in79° 78°0.07 in~80° 78°0.08 in~81° 79°0.07 in
Mon Oct 581° 78°81° 80°0.09 in79° 79°0.12 in~82° 78°~81° 79°0.05 in
Tue Oct 680° 78°81° 80°0.12 in79° 79°0.16 in~82° 78°0.11 in~81° 79°0.09 in
Wed Oct 7—~81° 80°0.04 in~79° 79°~81° 77°~80° 78°0.13 in
Thu Oct 8—~81° 81°0.06 in—~82° 77°0.10 in~80° 78°0.13 in
Fri Oct 9—~80° 80°0.02 in—~81° 78°0.03 in~80° 78°0.11 in
Sat Oct 10—~81° 80°0.04 in—~83° 79°~80° 78°0.08 in
Sun Oct 11—~81° 80°0.42 in—~82° 79°0.02 in~81° 79°0.04 in
Mon Oct 12—~81° 79°0.88 in—~80° 80°~78° 78°

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 hLowsteady conditions
  • Sinus pressurenext 24 hLowsteady conditions
  • Common coldtodayLowmild
  • FlutodayLowmild
  • Migrainenext 24 hLowsteady conditions
  • Asthmanext 24 hLowclean air
  • Heat stresstodayModerateheat
  • SunburntodayLowweak sun
  • Frostbitenext 24 hLowmild
  • SleepingtonightFairwarm night

Outdoors

  • RunningtodayFairhot
  • HikingtodayIdealfine conditions
  • BikingtodayGoodwind
  • GolftodayGoodwind
  • FishingtodayGoodwind
  • Boating and paddlingtodayGoodwind
  • Beach and pooltodayGoodmostly cloudy
  • CampingtonightVery goodwind
  • StargazingtonightPoormostly cloudy

Travel

  • Air travelnext 24 hIdealclear skies
  • Drivingnext 24 hIdealclear roads

Home and garden

  • Lawn mowingtodayIdealfine conditions
  • GardeningtodayVery goodwind
  • Outdoor entertainingtodayGoodwind
  • Drying laundry outsidetodayGoodlittle sun
  • Painting and outdoor projectstodayVery goodwind
  • FrosttonightLowmild

Pests

  • MosquitoestodayVery highwarm
  • TickstodayHighwarm
  • Indoor pestsnext 24 hLowmild
  • Outdoor peststodayVery highwarm

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
SundayPoor7:35 PM to 5:03 AM0 of 9None100%30 mph
MondayPoor7:35 PM to 5:02 AM0 of 9None97%26 mph
TuesdayPoor7:35 PM to 5:01 AM0 of 9None92%25 mph
WednesdayPoor7:35 PM to 5:01 AM0 of 9None86%18 mph
ThursdayPoor7:36 PM to 5:00 AM0 of 9None77%14 mph
FridayFair7:36 PM to 4:59 AM4 of 9None68%Good15 mph
SaturdayPoor7:36 PM to 4:58 AM0 of 9None58%12 mph
SundayPoor7:36 PM to 4:58 AM0 of 9None47%17 mph
MondayPoor7:36 PM to 4:57 AM0 of 9None37%17 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
Sun5:53 AM to 6:02 AM6:02 AM to 6:43 AM5:56 PM to 6:37 PM6:37 PM to 6:46 PM
Mon5:53 AM to 6:01 AM6:01 AM to 6:42 AM5:56 PM to 6:37 PM6:37 PM to 6:46 PM
Tue5:52 AM to 6:00 AM6:00 AM to 6:41 AM5:56 PM to 6:37 PM6:37 PM to 6:46 PM
Wed5:51 AM to 5:59 AM5:59 AM to 6:41 AM5:56 PM to 6:38 PM6:38 PM to 6:46 PM
Thu5:50 AM to 5:59 AM5:59 AM to 6:40 AM5:56 PM to 6:38 PM6:38 PM to 6:46 PM
Fri5:50 AM to 5:58 AM5:58 AM to 6:39 AM5:56 PM to 6:38 PM6:38 PM to 6:46 PM
Sat5:49 AM to 5:57 AM5:57 AM to 6:38 AM5:56 PM to 6:38 PM6:38 PM to 6:46 PM
NESWSRSSMRMS
  • SR Sunrise 6:15 AM, 92° E
  • SS Sunset 6:24 PM, 268° W
  • MR Moonrise 6:47 PM, 82° E
  • MS Moonset 6:11 AM, 274° 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

  • Thu 1 PM to 7 PM 6 hours, every hour within the rules
  • Mon 7 AM to 1 PM 6 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
SundayDry0.00 in74%27 mph2 d
MondayDry0.04 in76%29 mph1 d
TuesdayShowers possible0.14 in75%25 mph
WednesdayDry0.01 in75%19 mph4 d
ThursdayDry0.00 in62%16 mph3 d
FridayDry0.02 in72%15 mph2 d
SaturdayDry0.02 in71%13 mph1 d
SundayShowers possible0.09 in77%17 mph
MondayDry0.00 in63%17 mph2 d
TuesdayDry0.00 in67%18 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 Sunday, rated best.

DayRatingMajor periodsMinor periodsMoonSunrise, sunset
Sun Best11:04 PM to 1:04 AM11:27 AM to 1:27 PM5:41 AM to 6:41 AM6:17 PM to 7:17 PM 100%6:15 AM, 6:24 PM
Mon Best11:50 PM to 1:50 AM12:14 PM to 2:14 PM6:21 AM to 7:21 AM7:12 PM to 8:12 PM 98%6:14 AM, 6:24 PM
Tue Good12:39 AM to 2:39 AM1:05 PM to 3:05 PM7:04 AM to 8:04 AM8:10 PM to 9:10 PM 94%6:13 AM, 6:24 PM
Wed Fair1:32 AM to 3:32 AM2:00 PM to 4:00 PM7:52 AM to 8:52 AM9:11 PM to 10:11 PM 88%6:12 AM, 6:24 PM
Thu Poor2:29 AM to 4:29 AM2:59 PM to 4:59 PM8:46 AM to 9:46 AM10:15 PM to 11:15 PM 80%6:12 AM, 6:24 PM
Fri Fair3:30 AM to 5:30 AM4:02 PM to 6:02 PM9:44 AM to 10:44 AM11:19 PM to 12:19 AM 71%6:11 AM, 6:25 PM
Sat Fair4:33 AM to 6:33 AM5:04 PM to 7:04 PM10:47 AM to 11:47 AM 61%6:10 AM, 6:25 PM

Periods in bold fall within an hour of sunrise or sunset. The weather’s side is the fishing index · Solunar tables for Mulifanua, 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. This Afternoon81° · SE 24–27 mph

    Partly cloudy. High near 27°C. Southeast wind 38 to 43 km/h.

  2. Tonight78° · SE 26–30 mph

    Partly cloudy. Low near 25°C. Southeast wind 42 to 49 km/h.

  3. Monday80° · SE 26–30 mph

    Rain showers. High near 27°C. Southeast wind 42 to 48 km/h. Precipitation around 0.9 mm.

  4. Monday Night78° · SE 21–27 mph

    Partly cloudy. Low near 26°C. Southeast wind 33 to 43 km/h.

  5. Tuesday81° · SE 21–24 mph

    Light rain. High near 27°C. Southeast wind 34 to 39 km/h. Precipitation around 4 mm.

  6. Tuesday Night79° · SE 23–25 mph

    Partly cloudy. Low near 26°C. Southeast wind 37 to 40 km/h.

  7. Wednesday81° · SE 14–19 mph

    Partly cloudy. High near 27°C. Southeast wind 23 to 30 km/h.

  8. Wednesday Night78° · SE 14–18 mph

    Partly cloudy. Low near 25°C. Southeast wind 23 to 29 km/h.

  9. Thursday82° · SE 9–16 mph

    Cloudy. High near 28°C. Southeast wind 15 to 25 km/h.

  10. Thursday Night78° · SE 10–14 mph

    Cloudy. Low near 26°C. Southeast wind 16 to 22 km/h.

  11. Friday81° · ESE 11–14 mph

    Partly cloudy. High near 27°C. Eastsoutheast wind 18 to 23 km/h. Precipitation around 0.5 mm.

  12. Friday Night79° · SE 11–15 mph

    Partly cloudy. Low near 26°C. Southeast wind 18 to 24 km/h.

  13. Saturday80° · ESE 12–13 mph

    Partly cloudy. High near 27°C. Eastsoutheast wind 20 to 21 km/h. Precipitation around 0.5 mm.

  14. Saturday Night77° · SE 11–12 mph

    Partly cloudy. Low near 25°C. Southeast wind 18 to 20 km/h.

  15. Sunday79° · SE 12–12 mph

    Rain showers. High near 26°C. Southeast wind 19 to 20 km/h. Precipitation around 2 mm.

  16. Sunday Night78° · SE 11–17 mph

    Partly cloudy. Low near 26°C. Southeast wind 18 to 27 km/h.

  17. Monday81° · SE 9–12 mph

    Partly cloudy. High near 27°C. Southeast wind 15 to 20 km/h.

  18. Monday Night78° · SE 11–17 mph

    Partly cloudy. Low near 25°C. Southeast wind 18 to 27 km/h.

  19. Tuesday80° · SE 13–18 mph

    Mostly clear. High near 27°C. Southeast wind 21 to 29 km/h.

Climate

Climate of Mulifanua: 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.

ElementSunMonTueWedThuFriSatSunMonTue
Pressure min29.93 inHg29.92 inHg29.93 inHg29.97 inHg29.99 inHg29.97 inHg29.95 inHg29.92 inHg29.92 inHg29.94 inHg

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Sun5:53 AM6:15 AM6:24 PM6:46 PM12 h 9 min Full moon · 100% lit
Mon5:53 AM6:14 AM6:24 PM6:46 PM12 h 10 min Waning gibbous · 98% lit
Tue5:52 AM6:13 AM6:24 PM6:46 PM12 h 11 min Waning gibbous · 94% lit
Wed5:51 AM6:12 AM6:24 PM6:46 PM12 h 12 min Waning gibbous · 88% lit
Thu5:50 AM6:12 AM6:24 PM6:46 PM12 h 12 min Waning gibbous · 80% lit
Fri5:50 AM6:11 AM6:25 PM6:46 PM12 h 14 min Waning gibbous · 71% lit
Sat5:49 AM6:10 AM6:25 PM6:46 PM12 h 15 min Waning gibbous · 61% lit
Sun5:48 AM6:10 AM6:25 PM6:46 PM12 h 15 min Last quarter · 50% lit
Mon5:47 AM6:09 AM6:25 PM6:46 PM12 h 16 min Waning crescent · 40% lit
Tue5:47 AM6:08 AM6:25 PM6:46 PM12 h 17 min Waning crescent · 30% 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