National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

11°F

-12°C

Humidity 70%
Wind Speed N 10 mph
Barometer 30.41 in (1030.8 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 4 Dec 8:54 am CST
Extended Forecast for

2 Miles NNE Decatur Airport IL

  • Today

    Today: Sunny, with a high near 17. Wind chill values between -3 and 7. North northeast wind 5 to 8 mph.

    High: 17 °F

    Sunny

  • Tonight

    Tonight: Patchy freezing fog after 7pm. Partly cloudy, with a low around 0. Wind chill values between -3 and -8. Northeast wind around 5 mph becoming light and variable.

    Low: 0 °F

    Patchy
    Freezing Fog

  • Friday

    Friday: Mostly sunny, with a high near 31. Wind chill values between -1 and 9. South wind 5 to 9 mph.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. South wind 6 to 9 mph becoming west after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 31. West wind around 6 mph becoming north northeast in the afternoon.

    High: 31 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 20. Northeast wind 5 to 7 mph.

    Low: 20 °F

    Cloudy then
    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 27. North northeast wind 8 to 10 mph, with gusts as high as 15 mph.

    High: 27 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 17. Wind chill values between -3 and 7. North northeast wind 5 to 8 mph.
Tonight
Patchy freezing fog after 7pm. Partly cloudy, with a low around 0. Wind chill values between -3 and -8. Northeast wind around 5 mph becoming light and variable.
Friday
Mostly sunny, with a high near 31. Wind chill values between -1 and 9. South wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 21. South wind 6 to 9 mph becoming west after midnight.
Saturday
Mostly cloudy, with a high near 31. West wind around 6 mph becoming north northeast in the afternoon.
Saturday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 20. Northeast wind 5 to 7 mph.
Sunday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 27. North northeast wind 8 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
A chance of rain. Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Decatur Airport IL
 39.86°N 88.85°W (Elev. 682 ft)
Last Update:
9:36 am CST Dec 4, 2025
Forecast Valid:
9am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation