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.

Fog/Mist

38°F

3°C

Humidity 97%
Wind Speed E 3 mph
Barometer 30.01 in (1016.5 mb)
Dewpoint 37°F (3°C)
Visibility 6.00 mi
Last update 10 Jan 5:54 am CST
Extended Forecast for

3 Miles WSW Decatur IL

  • Today

    Today: Rain and snow showers likely before 11am, then a slight chance of snow showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 40. Light west southwest wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow Showers

  • Tonight

    Tonight: A chance of snow showers, mainly between 9pm and midnight, then a chance of flurries after midnight. Mostly cloudy, with a low around 24. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow
    Showers then
    Chance
    Flurries and
    Blustery

  • Sunday

    Sunday: A chance of flurries before 9am. Mostly sunny, with a high near 34. Breezy, with a west northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 34 °F

    Chance
    Flurries and
    Breezy then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 45. West southwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 45 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. West wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Today
Rain and snow showers likely before 11am, then a slight chance of snow showers after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 40. Light west southwest wind becoming west northwest 11 to 16 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
A chance of snow showers, mainly between 9pm and midnight, then a chance of flurries after midnight. Mostly cloudy, with a low around 24. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Sunday
A chance of flurries before 9am. Mostly sunny, with a high near 34. Breezy, with a west northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Mostly clear, with a low around 25. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 45. West southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 34. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 52. West wind 13 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Decatur IL
 39.84°N 88.97°W (Elev. 676 ft)
Last Update:
4:26 am CST Jan 10, 2026
Forecast Valid:
6am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation