See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:11
Sunrise
19:24
Sunset
Moon
Waxing Crescent
13:17
Moonrise
21:23
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Alton.
Resources
UV Index
Humidity
Weather in Alton today, September 16, 2026
Alton 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 temperature range runs from about 12°C up to 22°C. Moisture in the air spans 63%-96%, with the highest values around 22:00. Expect gentle winds, highest near 15:00 at 3.6 km/h.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 14.2 km, with poorer spells close to 11.1 km. The sun rises at 07:11 and sets at 19:24, for a total of 12 hours 13 minutes of sunlight today.
The practical takeaway for Alton on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 22°C.
Frequently asked questions about weather in Alton
How warm does it get in Alton?
The warmest month in Alton is July, with average high temperatures of 29°C. The average temperature during this period is around 24°C.
How cold does it get in Alton?
The coldest month in Alton is January, with average low temperatures of -10°C. The average temperature during this period is around -7°C.
What is the wettest time of year in Alton?
The wettest month in Alton is May, with an average of 133mm of precipitation.
What is the driest time of year in Alton?
The driest month in Alton is January, with an average of 27mm of precipitation.
