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October 2026 Climate Summary

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

52°F

11°C

Humidity	89%
Wind Speed	W 9 mph
Barometer	29.92 in (1013.2 mb)
Dewpoint	49°F (9°C)
Visibility	10.00 mi
Wind Chill	49°F (9°C)
Last update	5 Nov 5:54 pm CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles S Clinton IL

Tonight
Low: 39 °F
Chance
Showers then
Slight Chance
Rain
Friday
High: 49 °F
Decreasing
Clouds
Friday Night
Low: 29 °F
Mostly Clear
Saturday
High: 52 °F
Sunny
Saturday Night
Low: 31 °F
Mostly Clear
Sunday
High: 61 °F
Sunny
Sunday Night
Low: 34 °F
Mostly Clear
Monday
High: 67 °F
Sunny
Monday Night
Low: 39 °F
Clear

Detailed Forecast

Tonight

A chance of showers or drizzle before 2am, then a slight chance of drizzle between 2am and 3am. Cloudy, with a low around 39. West wind 8 to 15 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 50%.

Friday

Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 10 to 16 mph, with gusts as high as 22 mph.

Friday Night

Mostly clear, with a low around 29. North northwest wind 5 to 9 mph becoming light after midnight.

Saturday

Sunny, with a high near 52. Calm wind becoming northwest 5 to 7 mph in the morning.

Saturday Night

Mostly clear, with a low around 31. Calm wind becoming west southwest around 5 mph after midnight.

Sunday

Sunny, with a high near 61. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Sunday Night

Mostly clear, with a low around 34. West southwest wind 5 to 7 mph becoming calm in the evening.