Slough weather
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Met Office, the European and the American model agree on a high near 15° in Slough today. Tomorrow: light drizzle, around 13°, with a 100% chance of rain.
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Slough weather in numbers
measured normals and 10 years of recorded weatherSlough swings 20°C across the year, from 22°C highs in August to 2°C lows in January, and October is usually the wettest month in a year that brings about 652 mm of precipitation. Over 10 years of recorded weather it averages 20 days a year at 25°C or above, 3 of them at 30°C or above, 29 frost nights, and rain on 135 days.
Day counts are from the ERA5 reanalysis for Slough’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 Slough and nearby towns.Live rain radar →Slough hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Slough 10-day forecast, out to 14 days
where the models agree, and where they splitSlough, England is at its warmest in Aug (average highs near 22°C) and coldest in Jan (lows around 2°C), with roughly 652 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Slough 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.
Slough climate by month
average daytime high and overnight low across a typical year (1991-2020)Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Slough's weather has changed since 1995
30 years of daily data, 1995-2024, shown as changeAround Slough, 2015-2024 averaged 0.6°C warmer than 1995-2004. 6 of the 10 warmest years since 1995 fall in the last ten, and the warmest was 2022.
Days above 25°C
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
2015-2024 against 1995-2004, below 0°C. Within the normal year-to-year swing
Average wind
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
| Year | Temp vs average | Days >25°C vs avg | Frost nights vs avg | Wind vs avg |
|---|---|---|---|---|
| 1995 | −0.1°C | +19 | +15 | +1% |
| 1996 | −1.4°C | +0 | +30 | +1% |
| 1997 | ±0.0°C | +1 | −0 | −3% |
| 1998 | −0.4°C | −14 | −5 | +5% |
| 1999 | +0.1°C | +2 | −10 | +3% |
| 2000 | −0.3°C | −12 | −2 | +3% |
| 2001 | −0.6°C | −1 | +14 | −3% |
| 2002 | +0.2°C | −9 | −21 | +1% |
| 2003 | ±0.0°C | +11 | +8 | −5% |
| 2004 | −0.1°C | −3 | −0 | −3% |
| 2005 | +0.1°C | +10 | +5 | −1% |
| 2006 | +0.6°C | +15 | +16 | +1% |
| 2007 | +0.1°C | −18 | −12 | +3% |
| 2008 | −0.4°C | −8 | +3 | +7% |
| 2009 | −0.2°C | −8 | +4 | −1% |
| 2010 | −1.5°C | −5 | +43 | −7% |
| 2011 | +0.4°C | −5 | −6 | +3% |
| 2012 | −0.7°C | −11 | −3 | −1% |
| 2013 | −1.0°C | +0 | +28 | +1% |
| 2014 | +0.6°C | −6 | −29 | −1% |
| 2015 | −0.1°C | −12 | −6 | +7% |
| 2016 | −0.1°C | −1 | −0 | −3% |
| 2017 | +0.2°C | −3 | +1 | −1% |
| 2018 | +0.4°C | +21 | −2 | −3% |
| 2019 | +0.1°C | −5 | −8 | −1% |
| 2020 | +0.5°C | +1 | −19 | +9% |
| 2021 | −0.2°C | −7 | +8 | −5% |
| 2022 | +1.2°C | +29 | −12 | −3% |
| 2023 | +0.8°C | +8 | −5 | +1% |
| 2024 | +0.6°C | +0 | −21 | −1% |
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Slough, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Slough?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1950 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 countsThe 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.
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 separatelyThe 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.