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

Castlereagh weather

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Light drizzle,rain likely tomorrow

Met Office, the European and the American model agree on a high near 20° in Castlereagh today. Tomorrow looks drizzle around 17°, with a 85% chance of rain.

20°15°
17°11°
15°
17°10°
17°11°
16°11°
Todaymodels agreeTomorrowmodels agreeTuesdaymodels agreeWednesdaymodels agreeThursdaymodels agreeFridaymodels agree
Met OfficeUKMO model
20°
Drizzle
Today 20°·Low 15°·Rain -
EuropeanECMWF
20°
Light drizzle
Today 20°·Low 15°·Rain 74%
AmericanNOAA GFS
19°
Light drizzle
Today 19°·Low 14°·Rain 74%

The weather map: all three models at once

Met Office, European, American side by side around Castlereagh 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
20° 15°
models agree
Tomorrow
Drizzle
17° 11°
models agree
Tue
Light drizzle
15°
models agree
Wed
Light drizzle
17° 10°
models agree
Thu
Light drizzle
17° 11°
models agree
Fri
Light drizzle
16° 11°
models agree
Sat
Light rain
17°
models agree
Sun
Light rain
19° 12°
models agree
Mon
Light rain
19° 11°
±4°
Tue
Light drizzle
15°
±3°
Wed
Light drizzle
16°
±4°
Thu
Light drizzle
17°
±5°
Fri
Light drizzle
15°
±3°
Sat
Partly cloudy
16°
±4°

Castlereagh, Northern Ireland is at its warmest in Jun (average highs near 18°C) and coldest in Jan (lows around 3°C), with roughly 1125 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Castlereagh 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.

Castlereagh climate by month

average daytime high and overnight low across a typical year
Jan
Feb
Mar
Apr
11°
May
16°
Jun
18°
11°
Jul
17°
11°
Aug
18°
12°
Sep
17°
10°
Oct
14°
Nov
10°
Dec

Which forecast is most accurate in Castlereagh?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
91
/100rank #1
90±0.5°C96±1.2 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
89
/100rank #2
90±0.6°C96±1.4 mph8290% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
85
/100rank #3
83±0.9°C92±2.5 mph8290% 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 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±1°19° to 20°models agree74% to 74% chance
Tomorrow±2°16° to 17°±11%74% to 85% chance
Tue±1°15° to 15°±19%63% to 82% chance
Wedmodels agree16° to 17°±5%14% to 19% chance
Thu±1°17° to 18°±19%46% to 65% 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 Castlereagh

today, local time
Sunrise
06:40
Sunset
20:03
Daylight
13h 23m

Common questions

What's the weather in Castlereagh today?
On this page we show what Met Office, European, American each forecast for Castlereagh 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 Castlereagh today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Castlereagh 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 Castlereagh?
Over the last 30 days, the European model has been the most accurate for Castlereagh (CheckWeather Score 91/100), ahead of the Met Office at 89. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Castlereagh?
June is typically the warmest month in Castlereagh, with average highs around 18°C.
How cold does Castlereagh get?
The coldest month in Castlereagh is January, when overnight lows average about 3°C.
How much rain does Castlereagh get?
Castlereagh sees roughly 1125 mm of precipitation a year, with July usually the wettest month.

Nearby

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