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CheckWeather UKThornbury
Forecast confidence: High · models disagree by 1°C

Thornbury weather

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Heavy drizzle,much the same tomorrow

Met Office, the European and the American model agree on a high near 19° in Thornbury today. Tomorrow looks cloudy around 19°, with a 19% chance of rain.

19°16°
19°12°
20°
21°12°
20°12°
21°
Todaymodels agreeTomorrowmodels agreeMondaymodels agreeTuesdaymodels agreeWednesdaysplit ±4°Thursdaysplit ±4°
Met OfficeUKMO model
19°
Heavy drizzle
Today 19°·Low 16°·Rain -
EuropeanECMWF
20°
Light drizzle
Today 20°·Low 16°·Rain 100%
AmericanNOAA GFS
19°
Drizzle
Today 19°·Low 16°·Rain 36%
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Thornbury weather warnings

Met Office yellow, amber and red warnings for South West England

Checking the Met Office for warnings in force for South West England…

Thornbury weather in numbers

measured normals and 10 years of recorded weather

Thornbury swings 19°C across the year, from 21°C highs in August to 2°C lows in January, and March is usually the wettest month in a year that brings about 1180 mm of precipitation. Over 10 years of recorded weather it averages 13 days a year at 25°C or above, 2 of them at 30°C or above, 30 frost nights, and rain on 150 days.

Warmest month
August
21°C average high
Coldest month
January
2°C average low
Wettest month
March
1180 mm a year
Comfortable
4 months
May, June, July and August
Residents
12,000
share this forecast
Most accurate here
European
94/100 CheckWeather Score
Warm days
13 days
a year at 25°C or above
Frost nights
30 nights
a year below 0°C
Rain days
150 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Thornbury’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Met Office, European, American side by side around Thornbury and nearby towns.Live rain radar →
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Thornbury hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Thornbury 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Heavy drizzle
19° 16°
models agree
Tomorrow
Cloudy
19° 12°
models agree
Mon
Cloudy
20°
models agree
Tue
Cloudy
21° 12°
models agree
Wed
Cloudy
20° 12°
±4°
Thu
Cloudy
21°
±4°
Fri
Light drizzle
20° 13°
±3°
Sat
Light drizzle
18° 13°
±5°
Sun
Cloudy
21° 12°
models agree
Mon
Cloudy
22° 13°
±4°
Tue
Light drizzle
20° 13°
models agree
Wed
Cloudy
23° 11°
±9°
Thu
Light drizzle
20° 13°
models agree
Fri
Heavy drizzle
17° 13°
±3°

Thornbury, England is at its warmest in Aug (average highs near 21°C) and coldest in Jan (lows around 2°C), with roughly 1180 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Thornbury 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.

Thornbury 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

Which forecast is most accurate in Thornbury?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
94
/100rank #1
91±0.5°C96±1.3 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
88
/100rank #2
90±0.6°C95±1.5 mph8290% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
85
/100rank #3
78±1.2°C90±3.0 mph8994% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1887 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.

Met OfficeUKMO model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Where the models disagree

temperature and rain, judged separately
DayTemperatureRain
Today±1°19° to 20°±64%36% to 100% chance
Tomorrowmodels agree19° to 19°±10%9% to 19% chance
Monmodels agree20° to 20°models agree0% to 0% chance
Tue±1°21° to 22°±4%0% to 4% chance
Wed±4°18° to 22°±21%3% 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 Thornbury

today, local time
Sunrise
06:51
Sunset
19:15
Daylight
12h 24m

Common questions

What's the weather in Thornbury today?
On this page we show what Met Office, European, American each forecast for Thornbury 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 Thornbury today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Thornbury 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 Thornbury?
Over the last 30 days, the European model has been the most accurate for Thornbury (CheckWeather Score 94/100), ahead of the Met Office 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 Thornbury?
August is typically the warmest month in Thornbury, with average highs around 21°C.
How cold does Thornbury get?
The coldest month in Thornbury is January, when overnight lows average about 2°C.
How much rain does Thornbury get?
Thornbury sees roughly 1180 mm of precipitation a year, with March usually the wettest month.

Nearby

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