Alliance Weather in September

What's the weather like in Alliance (Nebraska) in September 2025?

The climate in Alliance during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Alliance and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 7°C (44°F) is normal.

Alliance weather averages (imperial / metric)
Daytime temperature 24°C 75.1°F
Nightly temperature 6.9°C 44.3°F
Average temperature 15.4°C 59.7°F
Daily sunshine 9.6 hrs
Avg rainfall 35 mm 1.4 ins
Rainy days 7 days
Sea temperature 17°C 62.6°F
Humidity 57%
Windspeed 16.9kph 11 mph

On average September is the 6th wettest month of the year in Alliance with around 35mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.6 hours of sunshine per day.

September temperatures in Alliance

Alliance average temperature in September

September rainfall

Alliance average rain in September

September hourly sunshine

Alliance 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 Alliance 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

Alliance weather stats

Alliance weather statistics
Hottest month: July 30.6°C 87.1°F
Driest month: February 9mm 0.4ins
Sunniest month: August 11.1hrs
Coldest month: January 1.9°C 35.4°F
Wettest month: May 82mm 3.2ins
Map showing location of Alliance (42.10163, -102.87214) Alliance map pin © Google

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