Salem Weather in October

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

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

October is in the fall / autumn in Salem and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (69°F), whilst at night 7°C (44°F) is normal.

Salem weather averages (imperial / metric)
Daytime temperature 20.3°C 68.5°F
Nightly temperature 6.8°C 44.2°F
Average temperature 13.5°C 56.3°F
Daily sunshine 7.5 hrs
Avg rainfall 71 mm 2.8 ins
Rainy days 8 days
Sea temperature 17.2°C 63°F
Humidity 69%
Windspeed 14.4kph 9 mph

On average October is the 3rd driest month of the year in Salem with around 71mm 2.8 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 7.5 hours of sunshine per day.

October temperatures in Salem

Salem average temperature in October

October rainfall

Salem average rain in October

October hourly sunshine

Salem 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 Salem 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

Salem weather stats

Salem weather statistics
Hottest month: July 30.9°C 87.6°F
Driest month: January 55mm 2.2ins
Sunniest month: July 11hrs
Coldest month: January 2.4°C 36.3°F
Wettest month: May 106mm 4.2ins
Map showing location of Salem (38.62699, -88.94562) Salem map pin © Google

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