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Hourly Forecast
Daylight Hours
07:22
Sunrise
19:33
Sunset
Moon
Waxing Crescent
10:38
Moonrise
21:06
Moonset
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Weather in Alton tomorrow, September 15, 2026
Alton sees a largely clear day on September 15, 2026, interrupted by cloudier skies around 00:00. Plan for bright conditions either side of that cloudier interval. Morning skies stay relatively clear, holding cloud close to 19% near 00:00. The early part of the day favours being outside.
The day peaks near 37°C and cools toward 26°C. The air stays humid, with relative humidity between 29% and 91% and the peak around 07:00. Winds stay light, near 8.3 km/h by 17:00, so the day feels still more than breezy.
Afternoon conditions open up, holding cloud close to 8% near 20:00. The day finishes on a milder, brighter note. Visibility stays generally good near 15.9 km on average, though it can drop toward 14.7 km in thicker cloud or showers. Expect sunrise at 07:23, sunset at 19:32, and 12 hours 8 minutes of sunlight today overall.
The practical takeaway for Alton is a bright September 15, 2026, ideal for outdoor errands before temperatures ease from about 37°C.
Frequently asked questions about weather in Alton
How warm does it get in Alton?
The warmest month in Alton is August, with average high temperatures of 37°C. The average temperature during this period is around 31°C.
How cold does it get in Alton?
The coldest month in Alton is January, with average low temperatures of 12°C. The average temperature during this period is around 16°C.
What is the wettest time of year in Alton?
The wettest month in Alton is September, with an average of 81mm of precipitation.
What is the driest time of year in Alton?
The driest month in Alton is February, with an average of 18mm of precipitation.
