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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

64°F

18°C

Humidity 63%
Wind Speed SE 6 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 7:54 pm CDT
Extended Forecast for

Warrensburg IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. Southeast wind 5 to 9 mph becoming light east after midnight.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83. Light and variable wind.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Calm wind becoming south southwest 5 to 8 mph in the evening.

    Low: 62 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Partly sunny through mid morning, then becoming sunny, with a high near 90. Southwest wind 7 to 16 mph, with gusts as high as 22 mph.

    High: 90 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. West wind 13 to 16 mph, with gusts as high as 21 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Mostly clear, with a low around 64. West northwest wind around 8 mph becoming northeast after midnight.

    Low: 64 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. Southeast wind 5 to 9 mph becoming light east after midnight.
Sunday
Sunny, with a high near 83. Light and variable wind.
Sunday Night
Mostly clear, with a low around 62. Calm wind becoming south southwest 5 to 8 mph in the evening.
Columbus Day
Partly sunny through mid morning, then becoming sunny, with a high near 90. Southwest wind 7 to 16 mph, with gusts as high as 22 mph.
Monday Night
Clear, with a low around 70. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 89. West wind 13 to 16 mph, with gusts as high as 21 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 64. West northwest wind around 8 mph becoming northeast after midnight.
Wednesday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 70%.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 68. Breezy.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Warrensburg IL
 39.93°N 89.08°W (Elev. 643 ft)
Last Update:
7:36 pm CDT Oct 10, 2026
Forecast Valid:
8pm CDT Oct 10, 2026-6pm CDT Oct 17, 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