Lees Summit Weather in September

What's the weather like in Lees Summit (Missouri) in September 2025?

The climate in Lees Summit during September can be summarized as warm, humid and wet.

September is in the fall / autumn in Lees Summit and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 14°C (58°F) is normal.

Lees Summit weather averages (imperial / metric)
Daytime temperature 26.9°C 80.3°F
Nightly temperature 14.2°C 57.5°F
Average temperature 20.5°C 68.9°F
Daily sunshine 8.5 hrs
Avg rainfall 122 mm 4.8 ins
Rainy days 8 days
Sea temperature 20.8°C 69.5°F
Humidity 71%
Windspeed 15.1kph 9 mph

On average September is the 3rd wettest month of the year in Lees Summit with around 122mm 4.8 inches of rain making it a wet time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 hours of sunshine per day.

September temperatures in Lees Summit

Lees Summit average temperature in September

September rainfall

Lees Summit average rain in September

September hourly sunshine

Lees Summit average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Lees Summit in September 2025.

Other monthly averages

Best places to visit in September

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Beta

Current (hourly) weather 15 day forecast

Lees Summit weather stats

Lees Summit weather statistics
Hottest month: July 31.9°C 89.4°F
Driest month: January 31mm 1.2ins
Sunniest month: July 11.3hrs
Coldest month: January 3.1°C 37.6°F
Wettest month: June 135mm 5.3ins
Map showing location of Lees Summit (38.91084, -94.38217) Lees Summit map pin © Google

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