Current weather · Sep 24, 8:45 PM GMT+5:30
Chengalpattu, India
88°
- High
- 88°
- Low
- 82°
- Precip today
- 0.00 in
- Sunrise
- 5:59 AM
- Sunset
- 6:05 PM
Hour by hour
MET Norway, hourly to about 60 hours, then every six hoursScroll sideways for more hours. Pick an hour for every number.
Every hour as a table48 hours
| Time | Weather | Temperature | Feels like | Dew point | Humidity | Chance | Amount | Snow | Dir | Wind | Gust | Sky cover | Thunder | Pressure | Visibility | Ceiling |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu 8 PM | 88° | 90° | 63° | 45% | — | SW | 12 mph | 100% | 29.69 inHg | — | ||||||
| Thu 9 PM | 86° | 88° | 65° | 50% | — | SW | 9 mph | 100% | 29.71 inHg | — | ||||||
| Thu 10 PM | 84° | 87° | 65° | 54% | — | SW | 7 mph | 100% | 29.72 inHg | — | ||||||
| Thu 11 PM | 83° | 86° | 66° | 57% | — | WSW | 8 mph | 100% | 29.71 inHg | — | ||||||
| Fri 12 AM | 83° | 86° | 67° | 58% | — | WSW | 9 mph | 100% | 29.69 inHg | — | ||||||
| Fri 1 AM | 83° | 86° | 67° | 58% | — | WSW | 13 mph | 100% | 29.68 inHg | — | ||||||
| Fri 2 AM | 82° | 87° | 70° | 65% | — | WSW | 13 mph | 100% | 29.67 inHg | — | ||||||
| Fri 3 AM | 82° | 87° | 70° | 67% | — | WSW | 12 mph | 100% | 29.66 inHg | — | ||||||
| Fri 4 AM | 82° | 87° | 70° | 67% | — | WSW | 12 mph | 100% | 29.66 inHg | — | ||||||
| Fri 5 AM | 82° | 86° | 70° | 69% | — | SW | 11 mph | 100% | 29.68 inHg | — | ||||||
| Fri 6 AM | 81° | 85° | 71° | 70% | — | SW | 10 mph | 98% | 29.70 inHg | — | ||||||
| Fri 7 AM | 83° | 88° | 72° | 70% | — | SW | 10 mph | 97% | 29.74 inHg | — | ||||||
| Fri 8 AM | 85° | 92° | 72° | 66% | — | SW | 12 mph | 100% | 29.76 inHg | — | ||||||
| Fri 9 AM | 87° | 95° | 72° | 62% | — | WSW | 13 mph | 100% | 29.76 inHg | — | ||||||
| Fri 10 AM | 89° | 97° | 73° | 60% | — | SW | 12 mph | 95% | 29.75 inHg | — | ||||||
| Fri 11 AM | 91° | 101° | 74° | 57% | — | SW | 12 mph | 99% | 29.74 inHg | — | ||||||
| Fri 12 PM | 92° | 103° | 74° | 55% | — | SW | 14 mph | 95% | 29.70 inHg | — | ||||||
| Fri 1 PM | 93° | 105° | 74° | 55% | — | SW | 13 mph | 97% | 29.66 inHg | — | ||||||
| Fri 2 PM | 94° | 105° | 74° | 53% | — | SW | 12 mph | 73% | 29.64 inHg | — | ||||||
| Fri 3 PM | Scattered moderate rain showers | 93° | 104° | 74° | 54% | — | 0.01 in | SW | 12 mph | 53% | 29.62 inHg | — | ||||
| Fri 4 PM | Scattered light rain showers | 89° | 99° | 75° | 62% | — | 0.01 in | SW | 12 mph | 84% | 29.64 inHg | — | ||||
| Fri 5 PM | Light rain | 87° | 97° | 76° | 71% | — | 0.00 in | SW | 11 mph | 97% | 29.67 inHg | — | ||||
| Fri 6 PM | Heavy rain | 84° | 92° | 75° | 74% | — | 0.07 in | SSW | 10 mph | 98% | 29.69 inHg | — | ||||
| Fri 7 PM | 78° | 78° | 76° | 93% | — | WSW | 10 mph | 100% | 29.73 inHg | — | ||||||
| Fri 8 PM | 79° | 86° | 76° | 90% | — | SSW | 5 mph | 98% | 29.75 inHg | — | ||||||
| Fri 9 PM | 80° | 87° | 76° | 88% | — | WSW | 5 mph | 95% | 29.77 inHg | — | ||||||
| Fri 10 PM | 80° | 87° | 76° | 88% | — | WSW | 6 mph | 99% | 29.78 inHg | — | ||||||
| Fri 11 PM | 80° | 87° | 76° | 88% | — | WSW | 6 mph | 99% | 29.77 inHg | — | ||||||
| Sat 12 AM | 80° | 87° | 76° | 87% | — | WSW | 6 mph | 97% | 29.75 inHg | — | ||||||
| Sat 1 AM | 80° | 86° | 75° | 86% | — | WSW | 7 mph | 98% | 29.74 inHg | — | ||||||
| Sat 2 AM | 80° | 85° | 74° | 83% | — | WSW | 7 mph | 99% | 29.72 inHg | — | ||||||
| Sat 3 AM | 79° | 84° | 73° | 81% | — | SW | 6 mph | 99% | 29.72 inHg | — | ||||||
| Sat 4 AM | 79° | 79° | 72° | 81% | — | WSW | 6 mph | 88% | 29.73 inHg | — | ||||||
| Sat 5 AM | 78° | 78° | 72° | 81% | — | WSW | 6 mph | 66% | 29.75 inHg | — | ||||||
| Sat 6 AM | 79° | 79° | 72° | 80% | — | WSW | 6 mph | 28% | 29.78 inHg | — | ||||||
| Sat 7 AM | 82° | 88° | 73° | 75% | — | WSW | 6 mph | 51% | 29.80 inHg | — | ||||||
| Sat 8 AM | 85° | 92° | 73° | 67% | — | W | 8 mph | 69% | 29.82 inHg | — | ||||||
| Sat 9 AM | 88° | 95° | 73° | 62% | — | W | 10 mph | 62% | 29.83 inHg | — | ||||||
| Sat 10 AM | 90° | 98° | 73° | 58% | — | W | 9 mph | 64% | 29.82 inHg | — | ||||||
| Sat 11 AM | 92° | 102° | 73° | 56% | — | W | 8 mph | 36% | 29.79 inHg | — | ||||||
| Sat 12 PM | 93° | 104° | 74° | 54% | — | W | 7 mph | 32% | 29.76 inHg | — | ||||||
| Sat 1 PM | 94° | 105° | 74° | 52% | — | W | 7 mph | 18% | 29.73 inHg | — | ||||||
| Sat 2 PM | 94° | 105° | 74° | 52% | — | W | 6 mph | 29% | 29.70 inHg | — | ||||||
| Sat 3 PM | Scattered light rain showers | 94° | 105° | 73° | 51% | — | 0.00 in | W | 5 mph | 38% | 29.69 inHg | — | ||||
| Sat 4 PM | Scattered heavy rain showers | 92° | 102° | 74° | 56% | — | 0.11 in | SW | 8 mph | 60% | 29.70 inHg | — | ||||
| Sat 5 PM | Light rain | 82° | 91° | 78° | 88% | — | 0.01 in | NNW | 8 mph | 88% | 29.75 inHg | — | ||||
| Sat 6 PM | 81° | 91° | 79° | 93% | — | SE | 5 mph | 66% | 29.76 inHg | — | ||||||
| Sat 7 PM | 80° | 89° | 78° | 92% | — | SSE | 6 mph | 14% | 29.78 inHg | — |
The next 16 days
MET Norway forecast updated Sep 24, 6:47 PM GMT+5:30 to day 10, the mean of GFS, GEFS, ECMWF, ECMWF AI to day 16- TodaySep 2488°82°Cloudywind 12 mph
- FriSep 2594°78°Rain showerswind 14 mph
- SatSep 2694°77°Heavy rain showerswind 10 mph
- SunSep 2793°78°Partly cloudywind 9 mph
- MonSep 2892°78°Light rain showerswind 7 mph
- TueSep 2992°78°Cloudywind 7 mph
- WedSep 3091°78°Rain showerswind 8 mph
- ThuOct 191°78°Mostly clearwind 8 mph
- FriOct 289°76°Cloudywind 8 mph
- SatOct 388°77°Partly cloudywind 7 mph
- SunOct 4~92°78°Model mean
- MonOct 5~91°79°Model mean
- TueOct 6~91°79°Model mean
- WedOct 7~92°78°Model mean
- ThuOct 8~91°77°Model mean
- FriOct 9~93°77°Model mean
Right now
MET Norway forecast for this hour- Feels like90°
- WindSW 12 mph
- Humidity45%
- Dew point63°
- Pressure29.69 inHg
- UV index0 · Lowclear-sky peak 10 Friday
- Sunrise and sunsetSunrise · Sunset · set
- Moonrise4:29 PMMoonset 3:45 AM
- Moon phaseWaxing gibbous94% lit
The models, side by side
GFS Sep 24, 11:30 AM GMT+5:30 · GEFS Sep 24, 11:30 AM GMT+5:30 · ECMWF Sep 24, 5:30 AM GMT+5:30 · ECMWF AI Sep 24, 5:30 AM GMT+5:30Each 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.
| Day | NWS grid | GFS | GEFS | ECMWF | ECMWF AI |
|---|---|---|---|---|---|
| Today Sep 24 | 88° 82° | ~95° 85°0.04 in | ~95° 85°0.02 in | ~89° 82° | ~91° 83°0.01 in |
| Fri Sep 25 | 94° 78°0.09 in | 97° 81°0.04 in | 97° 81°0.08 in | 94° 80°0.11 in | ~93° 83°0.04 in |
| Sat Sep 26 | 94° 77°0.13 in | 97° 80° | 97° 80°0.02 in | 94° 78°0.20 in | ~95° 83°0.02 in |
| Sun Sep 27 | 93° 78° | 96° 80° | 96° 80°0.02 in | 95° 78° | ~95° 82°0.01 in |
| Mon Sep 28 | 92° 78°0.03 in | 95° 80°0.15 in | 95° 80°0.10 in | 92° 78°0.02 in | ~94° 82°0.06 in |
| Tue Sep 29 | 92° 78° | 91° 79°0.14 in | 94° 79°0.06 in | 94° 78°0.01 in | ~94° 82°0.04 in |
| Wed Sep 30 | 91° 78°0.06 in | 94° 78° | 94° 79°0.03 in | ~92° 78°0.04 in | ~94° 82°0.04 in |
| Thu Oct 1 | 91° 78°0.03 in | 95° 78°0.01 in | 93° 79°0.05 in | ~92° 78°0.02 in | ~93° 81°0.04 in |
| Fri Oct 2 | 89° 76°0.03 in | 94° 79°0.01 in | 94° 78°0.07 in | ~89° 78°0.05 in | ~92° 82°0.06 in |
| Sat Oct 3 | 88° 77°0.04 in | 94° 80°0.05 in | 94° 78°0.08 in | ~84° 78°0.06 in | ~91° 81°0.06 in |
| Sun Oct 4 | — | 94° 77°0.23 in | ~93° 79°0.04 in | ~90° 77°0.09 in | ~91° 81°0.06 in |
| Mon Oct 5 | — | ~90° 77°0.27 in | — | ~91° 78°0.04 in | ~92° 81°0.04 in |
| Tue Oct 6 | — | ~90° 77°0.14 in | — | ~90° 78°0.07 in | ~92° 81°0.04 in |
| Wed Oct 7 | — | ~92° 77°0.05 in | — | ~91° 76°0.19 in | ~92° 80°0.03 in |
| Thu Oct 8 | — | ~93° 77° | — | ~90° 75°0.18 in | ~92° 80°0.03 in |
| Fri Oct 9 | — | ~93° 77° | — | ~76° 76° | ~80° 80° |
A ~ marks a high or low read from six-hourly steps, which miss the true extreme by a degree or two.
ECMWF ensemble meteogram
Health and activities
Rules of thumb over the next 24 hours of forecast, the warnings in force, the station’s report, air quality and pollenNone 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.
The sun is down, so each rating says which span it is for: tomorrow’s daylight, tonight, or the next 24 hours.
Health
- Arthritisnext 24 hModeratehumid
- Sinus pressurenext 24 hLowsteady conditions
- Common coldtomorrowLowmild
- FlutomorrowLowmild
- Migrainenext 24 hModerateheat
- Asthmanext 24 hLowclean air
- Heat stresstomorrowExtremeheat
- SunburntomorrowLowweak sun
- Frostbitenext 24 hLowmild
- SleepingtonightFairwarm night
Outdoors
- RunningtomorrowFairhot
- HikingtomorrowGoodhot
- BikingtomorrowVery goodhot
- GolftomorrowVery goodhot
- FishingtomorrowIdealfine conditions
- Boating and paddlingtomorrowIdealfine conditions
- Beach and pooltomorrowGoodovercast
- CampingtonightVery goodwarm night
- StargazingtonightPoorovercast
Travel
- Air travelnext 24 hIdealclear skies
- Drivingnext 24 hIdealclear roads
Home and garden
- Lawn mowingtomorrowIdealfine conditions
- GardeningtomorrowIdealfine conditions
- Outdoor entertainingtomorrowVery goodhot
- Drying laundry outsidetomorrowVery goodlittle sun
- Painting and outdoor projectstomorrowIdealfine conditions
- FrosttonightLowmild
Pests
- MosquitoestomorrowVery highwarm
- TickstomorrowHighwarm
- Indoor pestsnext 24 hLowmild
- Outdoor peststomorrowHighwarm
Stargazing
Worked out from the NWS hourly forecast and the sun and moonTonight has no dark, clear hour without a bright moon in this forecast. Rated poor.
| Night of | Rating | Dark | Clear hours | Clear and moonless | Moon lit | Transparency (est.) | Dew | Strongest wind |
|---|---|---|---|---|---|---|---|---|
| Thursday | Poor | 7:15 PM to 4:49 AM | 0 of 8 | None | 95% | 13 mph | ||
| Friday | Poor | 7:15 PM to 4:49 AM | 0 of 9 | None | 99% | 2 h | 10 mph | |
| Saturday | Fair | 7:14 PM to 4:49 AM | 7 of 9 | None | 100% | Poor | 9 h | 6 mph |
| Sunday | Fair | 7:13 PM to 4:49 AM | 9 of 9 | None | 99% | Poor | 5 h | 6 mph |
| Monday | Fair | 7:13 PM to 4:49 AM | 4 of 9 | None | 96% | Fair | 5 h | 7 mph |
| Tuesday | Poor | 7:12 PM to 4:49 AM | 0 of 9 | None | 90% | 5 h | 7 mph | |
| Wednesday | Fair | 7:11 PM to 4:49 AM | 5 of 9 | None | 83% | Poor | 5 h | 8 mph |
| Thursday | Fair | 7:11 PM to 4:49 AM | 9 of 9 | 2 h from 7:30 PM | 75% | Poor | 5 h | 8 mph |
| Friday | Good | 7:10 PM to 4:49 AM | 9 of 9 | 3 h from 7:30 PM | 65% | Poor | 5 h | 8 mph |
| Saturday | Good | 7:09 PM to 4:49 AM | 4 of 9 | 4 h from 7:30 PM | 55% | Fair | 5 h | 7 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 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 is not rated. 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.
Spraying and field work
Worked out from the NWS hourly forecastHours 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 9 PM to Fri 1 AM 4 hours, every hour within the rules
- Fri 6 AM to 8 AM 2 hours, every hour within the rules
- Sat 2 AM to 12 PM 10 hours, every hour within the rules
- Sun 7 AM to 11 PM 16 hours, some with delta T between 8 and 10 °C
- Mon 11 AM to 11 PM 12 hours, every hour within the rules
- Tue 5 PM to 11 PM 6 hours, every hour within the rules
- Wed 5 PM to 11 PM 6 hours, every hour within the rules
- Thu 5 PM to 11 PM 6 hours, every hour within the rules
| Thu | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fri | 12 AM | 6 AM | 12 PM | 6 PM | ||||||||||||||||||||
| Sat | 12 AM | 6 AM | 12 PM | 6 PM | ||||||||||||||||||||
| Sun | 12 AM | 6 AM | 12 PM | 6 PM |
Good Marginal No
Field days
| Day | Daytime | Chance of rain | Rain | Lowest humidity | Strongest wind | Dry days in a row | Hay drying |
|---|---|---|---|---|---|---|---|
| Friday | Showers possible | 0.09 in | 53% | 14 mph | |||
| Saturday | Showers possible | 0.13 in | 51% | 10 mph | |||
| Sunday | Dry | 0.00 in | 49% | 9 mph | 3 d | Good | |
| Monday | Dry | 0.03 in | 54% | 7 mph | 2 d | ||
| Tuesday | Dry | 0.00 in | 53% | 7 mph | 1 d | ||
| Wednesday | Showers possible | 0.06 in | 55% | 8 mph | |||
| Thursday | Dry | 0.03 in | 55% | 8 mph | 2 d | ||
| Friday | Dry | 0.03 in | 65% | 8 mph | 1 d | ||
| Saturday | Showers possible | 0.04 in | 67% | 7 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.
In words
Written here from the MET Norway forecastTonight82° · WSW 7–13 mph
Cloudy. Low near 28°C. Westsouthwest wind 12 to 21 km/h.
Friday94° · SW 10–14 mph
Rain showers. High near 34°C. Southwest wind 16 to 22 km/h. Precipitation around 0.6 mm.
Friday Night78° · WSW 5–9 mph
Heavy rain. Low near 26°C. Westsouthwest wind 8 to 15 km/h. Precipitation around 1.7 mm.
Saturday94° · W 5–10 mph
Heavy rain showers. High near 35°C. West wind 8 to 16 km/h. Precipitation around 3 mm.
Saturday Night77° · S 4–6 mph
Partly cloudy. Low near 25°C. South wind 6 to 10 km/h.
Sunday93° · NW 6–9 mph
Partly cloudy. High near 34°C. Northwest wind 9 to 14 km/h.
Sunday Night78° · SSW 3 mph
Clear. Low near 26°C. Southsouthwest wind around 5 km/h.
Monday92° · S 3–7 mph
Light rain showers. High near 33°C. South wind 5 to 12 km/h. Precipitation around 0.8 mm.
Monday Night78° · SSW 3–4 mph
Mostly clear. Low near 26°C. Southsouthwest wind 5 to 7 km/h.
Tuesday92° · SSE 2–7 mph
Cloudy. High near 33°C. Southsoutheast wind 4 to 12 km/h.
Tuesday Night78° · SW 2–5 mph
Partly cloudy. Low near 25°C. Southwest wind 4 to 8 km/h.
Wednesday91° · ESE 0–8 mph
Rain showers. High near 33°C. Eastsoutheast wind 0 to 13 km/h. Precipitation around 1.2 mm.
Wednesday Night78° · SSW 3–4 mph
Clear. Low near 26°C. Southsouthwest wind 5 to 6 km/h.
Thursday91° · NE 2–8 mph
Mostly clear. High near 33°C. Northeast wind 3 to 13 km/h. Precipitation around 0.5 mm.
Thursday Night78° · W 1–2 mph
Partly cloudy. Low near 25°C. West wind 2 to 3 km/h. Precipitation around 0.5 mm.
Friday89° · SE 2–8 mph
Cloudy. High near 32°C. Southeast wind 4 to 13 km/h.
Friday Night76° · WSW 1–3 mph
Light rain showers. Low near 25°C. Westsouthwest wind 2 to 5 km/h. Precipitation around 0.9 mm.
Saturday88° · ESE 2–7 mph
Partly cloudy. High near 31°C. Eastsoutheast wind 4 to 12 km/h.
Saturday Night77° · SSW 2 mph
Partly cloudy. Low near 25°C. Southsouthwest wind around 4 km/h.
Climate
Everything else on the grid
MET Norway · 12 elementsThe 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.
| Element | Thu | Fri | Sat | Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|---|---|---|---|
| Pressure min | 29.69 inHg | 29.62 inHg | 29.69 inHg | 29.72 inHg | 29.73 inHg | 29.78 inHg | 29.80 inHg | 29.83 inHg | 29.84 inHg | 29.85 inHg |
Sun and moon
| Day | Civil twilight | Sunrise | Sunset | Civil twilight | Daylight | Moon |
|---|---|---|---|---|---|---|
| Thu | 5:38 AM | 5:59 AM | 6:05 PM | 6:26 PM | 12 h 6 min | Waxing gibbous · 94% lit |
| Fri | 5:38 AM | 5:59 AM | 6:04 PM | 6:25 PM | 12 h 5 min | Waxing gibbous · 98% lit |
| Sat | 5:38 AM | 5:59 AM | 6:04 PM | 6:25 PM | 12 h 5 min | Full moon · 100% lit |
| Sun | 5:38 AM | 5:59 AM | 6:03 PM | 6:24 PM | 12 h 4 min | Full moon · 100% lit |
| Mon | 5:38 AM | 5:59 AM | 6:02 PM | 6:23 PM | 12 h 3 min | Waning gibbous · 97% lit |
| Tue | 5:38 AM | 5:59 AM | 6:02 PM | 6:23 PM | 12 h 3 min | Waning gibbous · 92% lit |
| Wed | 5:38 AM | 5:59 AM | 6:01 PM | 6:22 PM | 12 h 2 min | Waning gibbous · 86% lit |
| Thu | 5:38 AM | 5:59 AM | 6:00 PM | 6:21 PM | 12 h 1 min | Waning gibbous · 77% lit |
| Fri | 5:38 AM | 5:59 AM | 6:00 PM | 6:21 PM | 12 h 1 min | Waning gibbous · 68% lit |
| Sat | 5:38 AM | 5:59 AM | 5:59 PM | 6:20 PM | 12 h 0 min | Last quarter · 58% 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