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.

Overcast

35°F

2°C

Humidity 93%
Wind Speed W 18 G 28 mph
Barometer 29.45 in (997.3 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 15 Mar 10:54 pm CDT
Extended Forecast for

3 Miles SW Dewitt IL

Wind Advisory March 15, 11:11pm until March 16, 10:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 15, 11:11pm until March 16, 10:00am

    NOW until 10:00am Mon

    Wind Advisory

  • Tonight

    Low: 21 °F

    Chance
    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 50 percent chance of snow, mainly before 4pm. Patchy blowing snow before 4pm. Cloudy, with a high near 26. Wind chill values between 3 and 8. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 46 mph.

    High: 26 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: A 10 percent chance of snow before 7pm. Mostly cloudy, with a low around 10. Wind chill values between -6 and 4. Blustery, with a west northwest wind 17 to 24 mph, with gusts as high as 32 mph.

    Low: 10 °F

    Blustery.
    Slight Chance
    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. Wind chill values between -7 and 3. West northwest wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Mostly cloudy, with a low around 22. South southeast wind 6 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 49. South wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 49 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. South southwest wind around 8 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of rain and snow before midnight, then a chance of snow. Patchy blowing snow after 2am. Cloudy, with a low around 21. Blustery, with a west northwest wind 23 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 50%.
Monday
A 50 percent chance of snow, mainly before 4pm. Patchy blowing snow before 4pm. Cloudy, with a high near 26. Wind chill values between 3 and 8. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 46 mph.
Monday Night
A 10 percent chance of snow before 7pm. Mostly cloudy, with a low around 10. Wind chill values between -6 and 4. Blustery, with a west northwest wind 17 to 24 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 26. Wind chill values between -7 and 3. West northwest wind 10 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 22. South southeast wind 6 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 49. South wind 13 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 35. South southwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Dewitt IL
 40.17°N 88.78°W (Elev. 699 ft)
Last Update:
10:31 pm CDT Mar 15, 2026
Forecast Valid:
11pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation