Grangeville Weather in October

What's the weather like in Grangeville (Idaho) in October 2025?

The climate in Grangeville during October can be summarized as cool and reasonably dry.

October is in the fall / autumn in Grangeville and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night -1°C (30°F) is normal.

Grangeville weather averages (imperial / metric)
Daytime temperature 15.2°C 59.3°F
Nightly temperature -1.2°C 29.9°F
Average temperature 7°C 44.6°F
Daily sunshine 7.2 hrs
Avg rainfall 59 mm 2.3 ins
Rainy days 7 days
Sea temperature 12.1°C 53.8°F
Humidity 64%
Windspeed 11.9kph 7 mph

On average October is the 4th driest month of the year in Grangeville with around 59mm 2.3 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 7.2 hours of sunshine per day.

October temperatures in Grangeville

Grangeville average temperature in October

October rainfall

Grangeville average rain in October

October hourly sunshine

Grangeville average rain in October

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 Grangeville in October 2025.

Other monthly averages

Best places to visit in October

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Grangeville weather stats

Grangeville weather statistics
Hottest month: July 28.2°C 82.8°F
Driest month: July 24mm 0.9ins
Sunniest month: July 14.2hrs
Coldest month: January 0.2°C 32.4°F
Wettest month: January 84mm 3.3ins
Map showing location of Grangeville (45.92655, -116.12237) Grangeville map pin © Google

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