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Hourly Forecast
Daylight Hours
06:47
Sunrise
19:05
Sunset
Moon
Waxing Crescent
13:20
Moonrise
20:43
Moonset
Daily Forecast
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Weather in Slough today, September 16, 2026
Slough stays under cloudy skies on September 16, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open.
The day peaks near 20°C and cools toward 12°C. Relative humidity sits between 47% and 80%, reaching its peak around 23:00. A lighter breeze peaks around 17:00 near 4.4 km/h.
Afternoon skies stay clogged, peaking close to 100% near 17:00. The grey theme continues rather than clearing out. Visibility holds near 39.3 km, though it can fall to 31.6 km. Sunrise is at 06:47 and sunset at 19:05, giving 12 hours 18 minutes of sunlight today.
Taken together, overcast skies in Slough on September 16, 2026 favour indoor or covered options, with temperatures near 20°C.
Frequently asked questions about weather in Slough
How warm does it get in Slough?
The warmest month in Slough is July, with average high temperatures of 22°C. The average temperature during this period is around 18°C.
How cold does it get in Slough?
The coldest month in Slough is January, with average low temperatures of 2°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Slough?
The wettest month in Slough is October, with an average of 76mm of precipitation.
What is the driest time of year in Slough?
The driest month in Slough is April, with an average of 43mm of precipitation.
