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Hourly Forecast
Daylight Hours
06:48
Sunrise
19:03
Sunset
Moon
Waxing Crescent
11:35
Moonrise
20:37
Moonset
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Weather in Norristown today, September 15, 2026
Expect a mostly clear day in Norristown on September 15, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled.
The temperature range runs from about 11°C up to 24°C. Relative humidity sits between 37% and 81%, reaching its peak around 22:00. Expect gentle winds, highest near 23:00 at 3.5 km/h.
Expect a more open afternoon, with limited cloud around 2% by 16:00. Residual damp risk should be lower than earlier. Horizontal visibility holds close to 16.1 km. The sun rises at 06:48 and sets at 19:03, for a total of 12 hours 14 minutes of sunlight today.
The practical takeaway for Norristown is a bright September 15, 2026, ideal for outdoor errands before temperatures ease from about 24°C.
Frequently asked questions about weather in Norristown
How warm does it get in Norristown?
The warmest month in Norristown is July, with average high temperatures of 31°C. The average temperature during this period is around 26°C.
How cold does it get in Norristown?
The coldest month in Norristown is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.
What is the wettest time of year in Norristown?
The wettest month in Norristown is July, with an average of 128mm of precipitation.
What is the driest time of year in Norristown?
The driest month in Norristown is November, with an average of 74mm of precipitation.
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