Harrisburg Weather in September

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

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

September is in the fall / autumn in Harrisburg and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 24°C (76°F), whilst at night 7°C (44°F) is normal.

Harrisburg weather averages (imperial / metric)
Daytime temperature 24.4°C 75.9°F
Nightly temperature 6.6°C 43.9°F
Average temperature 15.5°C 59.9°F
Daily sunshine 9.7 hrs
Avg rainfall 32 mm 1.2 ins
Rainy days 7 days
Sea temperature 17.4°C 63.3°F
Humidity 56%
Windspeed 16.6kph 10 mph

On average September is the 6th wettest month of the year in Harrisburg with around 32mm 1.2 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 9.7 hours of sunshine per day.

September temperatures in Harrisburg

Harrisburg average temperature in September

September rainfall

Harrisburg average rain in September

September hourly sunshine

Harrisburg 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 Harrisburg 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

Harrisburg weather stats

Harrisburg weather statistics
Hottest month: July 30.9°C 87.6°F
Driest month: February 10mm 0.4ins
Sunniest month: July 11.9hrs
Coldest month: January 3.2°C 37.8°F
Wettest month: May 72mm 2.8ins
Map showing location of Harrisburg (41.55636, -103.73856) Harrisburg map pin © Google

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