Imperial Weather in September

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

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

September is in the fall / autumn in Imperial and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 10°C (49°F) is normal.

Imperial weather averages (imperial / metric)
Daytime temperature 26.2°C 79.2°F
Nightly temperature 9.6°C 49.3°F
Average temperature 17.9°C 64.2°F
Daily sunshine 9.2 hrs
Avg rainfall 37 mm 1.5 ins
Rainy days 7 days
Sea temperature 18.3°C 64.9°F
Humidity 61%
Windspeed 18kph 11 mph

On average September is the 6th wettest month of the year in Imperial with around 37mm 1.5 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 9.2 hours of sunshine per day.

September temperatures in Imperial

Imperial average temperature in September

September rainfall

Imperial average rain in September

September hourly sunshine

Imperial 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 Imperial 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

Imperial weather stats

Imperial weather statistics
Hottest month: July 32.1°C 89.8°F
Driest month: December 11mm 0.4ins
Sunniest month: July 11.7hrs
Coldest month: January 3.7°C 38.7°F
Wettest month: May 86mm 3.4ins
Map showing location of Imperial (40.51694, -101.64323) Imperial map pin © Google

Locations nearby

Top United States locations