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.

Light Snow and Breezy

26°F

-3°C

Humidity 75%
Wind Speed NW 23 G 31 mph
Barometer 30.24 in (1024.7 mb)
Dewpoint 19°F (-7°C)
Visibility 3.00 mi
Wind Chill11°F (-12°C)
Last update 10 Nov 6:54 am CST
Extended Forecast for

Decatur IL

  • Today

    Today: Mostly sunny, with a high near 37. Breezy, with a north northwest wind 11 to 20 mph, with gusts as high as 31 mph.

    High: 37 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 22. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 17 mph.

    Low: 22 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Cloudy, then gradually becoming mostly sunny, with a high near 49. South southwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. West wind 9 to 14 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. West northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59. Calm wind becoming south 5 to 8 mph in the morning.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 37. Breezy, with a north northwest wind 11 to 20 mph, with gusts as high as 31 mph.
Tonight
Increasing clouds, with a low around 22. West northwest wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 17 mph.
Veterans Day
Cloudy, then gradually becoming mostly sunny, with a high near 49. South southwest wind 10 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 36. West wind 9 to 14 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 58. West northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 33. West northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 59. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 53.
Sunday
A chance of rain. Partly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.86°N 88.94°W (Elev. 682 ft)
Last Update:
5:11 am CST Nov 10, 2025
Forecast Valid:
7am CST Nov 10, 2025-6pm CST Nov 16, 2025
 
Forecast Discussion
 
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Additional Resources

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