National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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 Chill49°F (9°C)
Last update 5 Nov 5:54 pm CST
Extended Forecast for

Warrensburg IL

  • Tonight

    Tonight: A chance of showers or drizzle before 2am, then a slight chance of drizzle between 2am and 3am. Cloudy, with a low around 40. West wind 9 to 15 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    Low: 40 °F

    Chance
    Showers

  • Friday

    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.

    High: 49 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. North northwest wind 3 to 8 mph.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Calm wind becoming west northwest 5 to 7 mph in the morning.

    High: 51 °F

    Sunny

  • Saturday Night

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

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. West southwest wind 5 to 9 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34. West southwest wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39.

    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 40. West wind 9 to 15 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 40%.
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 3 to 8 mph.
Saturday
Sunny, with a high near 51. Calm wind becoming west 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 9 mph.
Sunday Night
Mostly clear, with a low around 34. West southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 66.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 36.
Veterans Day
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Warrensburg IL
 39.93°N 89.05°W (Elev. 699 ft)
Last Update:
5:21 pm CST Nov 5, 2026
Forecast Valid:
6pm CST Nov 5, 2026-6pm CST Nov 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation