Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

31°F

-1°C

Humidity 76%
Wind Speed W 12 mph
Barometer 30.16 in (1022.0 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 2 Feb 1:54 pm CST
Extended Forecast for

Decatur IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 32. West wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 32 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 3am.  Cloudy, with a low around 21. Calm wind becoming northeast around 6 mph after midnight.

    Low: 21 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: A 20 percent chance of snow before 9am.  Mostly cloudy, with a high near 29. Northeast wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 29 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 11. North northeast wind 3 to 6 mph.

    Low: 11 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 25. North wind 3 to 6 mph.

    High: 25 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. West wind 3 to 5 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 32. South southwest wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 32 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 32. West wind 5 to 9 mph, with gusts as high as 15 mph.
Tonight
A 20 percent chance of snow after 3am. Cloudy, with a low around 21. Calm wind becoming northeast around 6 mph after midnight.
Tuesday
A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 29. Northeast wind 7 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Partly cloudy, with a low around 11. North northeast wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 25. North wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 10. West wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 32. South southwest wind 5 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 39.
Friday Night
Partly cloudy, with a low around 17.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.84°N 88.94°W (Elev. 692 ft)
12:57 pm CST Feb 2, 2026
2pm CST Feb 2, 2026-6pm CST Feb 8, 2026
 
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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