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CheckWeather UKLetchworth Garden City
Forecast confidence: Medium · models disagree by 2°C

Letchworth Garden City weather

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Light drizzle,much the same tomorrow

Met Office, the European and the American model put Letchworth Garden City's high today between 20° and 22°, a 2° split. Tomorrow looks cloudy around 18°, with a 19% chance of rain.

21°16°
18°11°
22°
23°13°
21°13°
20°10°
Todaysplit ±2°Tomorrowmodels agreeMondaymodels agreeTuesdaysplit ±2°Wednesdaysplit ±4°Thursdaysplit ±5°
Met OfficeUKMO model
21°
Light drizzle
Today 21°·Low 16°·Rain -
EuropeanECMWF
22°
Cloudy
Today 22°·Low 16°·Rain 50%
AmericanNOAA GFS
20°
Light drizzle
Today 20°·Low 16°·Rain 18%
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Letchworth Garden City weather warnings

Met Office yellow, amber and red warnings for East of England

Checking the Met Office for warnings in force for East of England…

Letchworth Garden City weather in numbers

measured normals and 10 years of recorded weather

Letchworth Garden City swings 20°C across the year, from 22°C highs in August to 2°C lows in January, and September is usually the wettest month in a year that brings about 823 mm of precipitation. Over 10 years of recorded weather it averages 17 days a year at 25°C or above, 3 of them at 30°C or above, 31 frost nights, and rain on 133 days.

Warmest month
August
22°C average high
Coldest month
January
2°C average low
Wettest month
September
823 mm a year
Comfortable
4 months
May, June, July and August
Residents
34,000
share this forecast
Most accurate here
European
89/100 CheckWeather Score
Warm days
17 days
a year at 25°C or above
Frost nights
31 nights
a year below 0°C
Rain days
133 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Letchworth Garden City’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 Letchworth Garden City and nearby towns.Live rain radar →
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Letchworth Garden City 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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Letchworth Garden City 10-day forecast, out to 14 days

where the models agree, and where they split
Today
Light drizzle
21° 16°
±2°
Tomorrow
Cloudy
18° 11°
models agree
Mon
Cloudy
22°
models agree
Tue
Cloudy
23° 13°
±2°
Wed
Cloudy
21° 13°
±4°
Thu
Cloudy
20° 10°
±5°
Fri
Light drizzle
21° 13°
±3°
Sat
Drizzle
19° 13°
±8°
Sun
Cloudy
20° 12°
models agree
Mon
Cloudy
25° 13°
±3°
Tue
Heavy drizzle
22° 13°
±5°
Wed
Heavy drizzle
24° 12°
±8°
Thu
Cloudy
20° 13°
models agree
Fri
Light drizzle
20° 14°
±3°

Letchworth Garden City, England (often shortened to Letchworth) is at its warmest in Aug (average highs near 22°C) and coldest in Jan (lows around 2°C), with roughly 823 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Letchworth Garden City 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.

Letchworth Garden City climate by month

average daytime high and overnight low across a typical year
Jan
Feb
10°
Mar
10°
Apr
13°
May
17°
Jun
20°
11°
Jul
21°
13°
Aug
22°
13°
Sep
21°
12°
Oct
15°
Nov
10°
Dec

Which forecast is most accurate in Letchworth Garden City?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
89
/100rank #1
95±0.3°C97±0.9 mph7687% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
85
/100rank #2
91±0.5°C95±1.6 mph7184% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
81
/100rank #3
89±0.6°C92±2.6 mph6581% 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±2°20° to 22°±32%18% to 50% chance
Tomorrowmodels agree18° to 18°±17%2% to 19% chance
Mon±2°21° to 23°models agree0% to 0% chance
Tue±2°22° to 25°models agree0% to 0% chance
Wed±4°19° to 23°±12%6% to 18% 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 Letchworth Garden City

today, local time
Sunrise
06:41
Sunset
19:06
Daylight
12h 25m

Common questions

What's the weather in Letchworth Garden City today?
On this page we show what Met Office, European, American each forecast for Letchworth Garden City 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 Letchworth Garden City today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Letchworth Garden City 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 Letchworth Garden City?
Over the last 30 days, the European model has been the most accurate for Letchworth Garden City (CheckWeather Score 89/100), ahead of the Met Office at 85. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Letchworth Garden City?
August is typically the warmest month in Letchworth Garden City, with average highs around 22°C.
How cold does Letchworth Garden City get?
The coldest month in Letchworth Garden City is January, when overnight lows average about 2°C.
How much rain does Letchworth Garden City get?
Letchworth Garden City sees roughly 823 mm of precipitation a year, with September usually the wettest month.

Nearby

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