Dubois Weather in September

What's the weather like in Dubois (Idaho) in September 2025?

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

September is in the fall / autumn in Dubois and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a cool 21°C (70°F), whilst at night 3°C (38°F) is normal.

Dubois weather averages (imperial / metric)
Daytime temperature 21.2°C 70.1°F
Nightly temperature 3.3°C 37.9°F
Average temperature 12.2°C 54°F
Daily sunshine 10 hrs
Avg rainfall 26 mm 1 ins
Rainy days 7 days
Sea temperature 14.6°C 58.3°F
Humidity 51%
Windspeed 14.4kph 9 mph

On average September is the 5th driest month of the year in Dubois with around 26mm 1 inches of rain making it a 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 10 hours of sunshine per day.

September temperatures in Dubois

Dubois average temperature in September

September rainfall

Dubois average rain in September

September hourly sunshine

Dubois 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 Dubois 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

Dubois weather stats

Dubois weather statistics
Hottest month: July 27.7°C 81.9°F
Driest month: February 23mm 0.9ins
Sunniest month: July 12.9hrs
Coldest month: January -2.5°C 27.5°F
Wettest month: June 47mm 1.9ins
Map showing location of Dubois (44.1763, -112.23082) Dubois map pin © Google

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