Jerseyville Weather in October

What's the weather like in Jerseyville (Illinois) in October 2025?

The climate in Jerseyville during October can be summarized as mild and reasonably dry.

October is in the fall / autumn in Jerseyville and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 8°C (46°F) is normal.

Jerseyville weather averages (imperial / metric)
Daytime temperature 20.1°C 68.1°F
Nightly temperature 7.6°C 45.6°F
Average temperature 13.8°C 56.8°F
Daily sunshine 7.4 hrs
Avg rainfall 68 mm 2.7 ins
Rainy days 8 days
Sea temperature 16.2°C 61.1°F
Humidity 69%
Windspeed 16.2kph 10 mph

On average October is the 4th driest month of the year in Jerseyville with around 68mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.4 hours of sunshine per day.

October temperatures in Jerseyville

Jerseyville average temperature in October

October rainfall

Jerseyville average rain in October

October hourly sunshine

Jerseyville 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 Jerseyville 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

Jerseyville weather stats

Jerseyville weather statistics
Hottest month: July 31°C 87.8°F
Driest month: January 42mm 1.7ins
Sunniest month: July 10.8hrs
Coldest month: January 2.1°C 35.8°F
Wettest month: May 107mm 4.2ins
Map showing location of Jerseyville (39.12005, -90.32845) Jerseyville map pin © Google

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