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Forecast confidence: High · models disagree by 2°C

Corsham weather

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Light drizzle,rain likely tomorrow

Met Office, the European and the American model agree on a high near 25° in Corsham today. Tomorrow looks light drizzle around 20°, with a 34% chance of rain.

25°13°
20°15°
18°11°
18°11°
18°11°
21°13°
Todaymodels agreeTomorrowmodels agreeTuesdaymodels agreeWednesdaysplit ±2°Thursdaysplit ±2°Fridaysplit ±3°
Met OfficeUKMO model
26°
Light drizzle
Today 26°·Low 13°·Rain -
EuropeanECMWF
24°
Light drizzle
Today 24°·Low 12°·Rain 86%
AmericanNOAA GFS
26°
Light drizzle
Today 26°·Low 12°·Rain 58%

The weather map: all three models at once

Met Office, European, American side by side around Corsham and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split
Today
Light drizzle
25° 13°
models agree
Tomorrow
Light drizzle
20° 15°
models agree
Tue
Drizzle
18° 11°
models agree
Wed
Cloudy
18° 11°
±2°
Thu
Light drizzle
18° 11°
±2°
Fri
Cloudy
21° 13°
±3°
Sat
Light drizzle
21°
±5°
Sun
Light drizzle
20° 14°
±4°
Mon
Cloudy
21° 13°
±4°
Tue
Drizzle
20° 13°
models agree
Wed
Drizzle
19° 10°
±8°
Thu
Light drizzle
19°
±7°
Fri
Drizzle
17° 12°
±3°
Sat
Light drizzle
18° 10°
±6°

Corsham, England is at its warmest in Aug (average highs near 21°C) and coldest in Jan (lows around 2°C), with roughly 1104 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Corsham right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

Corsham climate by month

average daytime high and overnight low across a typical year
Jan
Feb
10°
Mar
10°
Apr
12°
May
17°
Jun
20°
11°
Jul
20°
12°
Aug
21°
13°
Sep
19°
12°
Oct
15°
Nov
10°
Dec
10°

Which forecast is most accurate in Corsham?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
88±0.7°C98±0.7 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
88
/100rank #2
84±0.9°C91±2.7 mph8994% hitNOAA / NCEP (United States)College Park, Maryland, USA
Met Office logo
Met Office
87
/100rank #3
91±0.5°C96±1.2 mph7687% hitMet Office (United Kingdom)Exeter, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1880 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±2°24° to 26°±28%58% to 86% chance
Tomorrow±2°19° to 21°±11%23% to 34% chance
Tue±1°18° to 19°±14%77% to 91% chance
Wed±2°17° to 19°±2%6% to 8% chance
Thu±2°17° to 19°±4%20% to 24% chance

The models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.

Sunrise and sunset in Corsham

today, local time
Sunrise
06:29
Sunset
19:44
Daylight
13h 15m

Common questions

What's the weather in Corsham today?
On this page we show what Met Office, European, American each forecast for Corsham today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Corsham today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Corsham and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Corsham?
Over the last 30 days, the European model has been the most accurate for Corsham (CheckWeather Score 91/100), ahead of the American at 88. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Corsham?
August is typically the warmest month in Corsham, with average highs around 21°C.
How cold does Corsham get?
The coldest month in Corsham is January, when overnight lows average about 2°C.
How much rain does Corsham get?
Corsham sees roughly 1104 mm of precipitation a year, with September usually the wettest month.

Nearby

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