Mount Pleasant Weather in September

What's the weather like in Mount Pleasant (Iowa) in September 2025?

The climate in Mount Pleasant during September can be summarized as warm and damp.

September is in the fall / autumn in Mount Pleasant and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 12°C (54°F) is normal.

Mount Pleasant weather averages (imperial / metric)
Daytime temperature 24.7°C 76.5°F
Nightly temperature 12.1°C 53.8°F
Average temperature 18.4°C 65.1°F
Daily sunshine 8.3 hrs
Avg rainfall 114 mm 4.5 ins
Rainy days 9 days
Sea temperature 19.6°C 67.4°F
Humidity 73%
Windspeed 14.8kph 9 mph

On average September is the 2nd wettest month of the year in Mount Pleasant with around 114mm 4.5 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.3 hours of sunshine per day.

September temperatures in Mount Pleasant

Mount Pleasant average temperature in September

September rainfall

Mount Pleasant average rain in September

September hourly sunshine

Mount Pleasant 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 Mount Pleasant in September 2025.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Mount Pleasant weather stats

Mount Pleasant weather statistics
Hottest month: July 30°C 86°F
Driest month: February 29mm 1.1ins
Sunniest month: July 10.9hrs
Coldest month: January -1.2°C 29.8°F
Wettest month: July 120mm 4.7ins
Map showing location of Mount Pleasant (40.96364, -91.55794) Mount Pleasant map pin © Google

Locations nearby

Top United States locations