Pocatello Weather in September

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

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

September is in the fall / autumn in Pocatello and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 5°C (40°F) is normal.

Pocatello weather averages (imperial / metric)
Daytime temperature 23.1°C 73.5°F
Nightly temperature 4.6°C 40.2°F
Average temperature 13.8°C 56.8°F
Daily sunshine 10.4 hrs
Avg rainfall 24 mm 1 ins
Rainy days 6 days
Sea temperature 15.5°C 60°F
Humidity 47%
Windspeed 15.1kph 9 mph

On average September is the 3rd driest month of the year in Pocatello with around 24mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.4 hours of sunshine per day.

September temperatures in Pocatello

Pocatello average temperature in September

September rainfall

Pocatello average rain in September

September hourly sunshine

Pocatello 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 Pocatello 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

Pocatello weather stats

Pocatello weather statistics
Hottest month: July 29.6°C 85.3°F
Driest month: August 19mm 0.7ins
Sunniest month: July 13.1hrs
Coldest month: January -1.2°C 29.8°F
Wettest month: May 37mm 1.5ins
Map showing location of Pocatello (42.8713, -112.44553) Pocatello map pin © Google

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