Bartlett Weather in October

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

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

October is in the fall / autumn in Bartlett and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (63°F), whilst at night 5°C (41°F) is normal.

Bartlett weather averages (imperial / metric)
Daytime temperature 17.3°C 63.1°F
Nightly temperature 4.9°C 40.8°F
Average temperature 11.1°C 52°F
Daily sunshine 6.8 hrs
Avg rainfall 65 mm 2.6 ins
Rainy days 9 days
Sea temperature 14.3°C 57.7°F
Humidity 70%
Windspeed 16.9kph 11 mph

On average October is the 4th driest month of the year in Bartlett with around 65mm 2.6 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.8 hours of sunshine per day.

October temperatures in Bartlett

Bartlett average temperature in October

October rainfall

Bartlett average rain in October

October hourly sunshine

Bartlett 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 Bartlett in October 2025.

Other monthly averages

Best places to visit in October

UV index Best time to go?

Bartlett weather stats

Bartlett weather statistics
Hottest month: July 28.5°C 83.3°F
Driest month: February 35mm 1.4ins
Sunniest month: July 10.9hrs
Coldest month: January -2.3°C 27.9°F
Wettest month: June 106mm 4.2ins
Map showing location of Bartlett (41.99503, -88.18563) Bartlett map pin © Google

Locations nearby

Top United States locations