Carrollton Weather in October

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

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

October is in the fall / autumn in Carrollton and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 7°C (44°F) is normal.

Carrollton weather averages (imperial / metric)
Daytime temperature 19.7°C 67.5°F
Nightly temperature 6.9°C 44.4°F
Average temperature 13.3°C 55.9°F
Daily sunshine 7.3 hrs
Avg rainfall 69 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 Carrollton with around 69mm 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 7.3 hours of sunshine per day.

October temperatures in Carrollton

Carrollton average temperature in October

October rainfall

Carrollton average rain in October

October hourly sunshine

Carrollton 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 Carrollton 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

Carrollton weather stats

Carrollton weather statistics
Hottest month: July 30.7°C 87.3°F
Driest month: January 39mm 1.5ins
Sunniest month: July 10.8hrs
Coldest month: January 1.6°C 34.9°F
Wettest month: May 107mm 4.2ins
Map showing location of Carrollton (39.30227, -90.40706) Carrollton map pin © Google

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