See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
24°
Partly Cloudy
Feels Like: 24°
Min: 16°
Max: 27°
The next few hours will be partly cloudy, with today reaching 27°C and dropping to 17°C. The coming days will be partly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:11
Sunrise
19:34
Sunset
Moon
Waxing Crescent
12:30
Moonrise
20:42
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
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Weather in Hamm today, September 15, 2026
Expect unsettled, showery conditions in Hamm on September 15, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Morning skies stay relatively clear, holding cloud close to 29% near 11:00. The early part of the day favours being outside.
The temperature range runs from about 16°C up to 27°C. The air stays humid, with relative humidity between 50% and 75% and the peak around 21:00. Airflow remains manageable, reaching about 3.9 km/h around 15:00.
Expect persistent cloud later on, with amounts around 100% by 21:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 39.2 km on average, though it can drop toward 35.0 km in thicker cloud or showers. Expect sunrise at 07:11, sunset at 19:34, and 12 hours 22 minutes of sunlight today overall.
Taken together, Hamm looks wet enough on September 15, 2026 that flexible outdoor plans work best, with temperatures peaking near 27°C.
Frequently asked questions about weather in Hamm
How warm does it get in Hamm?
The warmest month in Hamm is August, with average high temperatures of 24°C. The average temperature during this period is around 19°C.
How cold does it get in Hamm?
The coldest month in Hamm is January, with average low temperatures of 1°C. The average temperature during this period is around 3°C.
What is the wettest time of year in Hamm?
The wettest month in Hamm is January, with an average of 86mm of precipitation.
What is the driest time of year in Hamm?
The driest month in Hamm is April, with an average of 56mm of precipitation.
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