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

8°F

-13°C

Humidity 80%
Wind Speed N 22 mph
Barometer 30.08 in (1020.1 mb)
Dewpoint 3°F (-16°C)
Visibility 2.50 mi
Wind Chill-12°F (-24°C)
Last update 25 Jan 10:54 am CST
Extended Forecast for

Forsyth IL

Extreme Cold Warning January 26, 12:00am until January 26, 12:00pm
Winter Storm Warning January 25, 11:21am until January 25, 06:00pm
Click here for hazard details and duration
Extreme Cold Warning
Winter Storm Warning
  •  
    Winter Storm Warning January 25, 11:21am until January 25, 06:00pm

    NOW until 6:00pm Sun

    Winter Storm Warning

  • Today

    High: 14 °F

    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around -5. Wind chill values between -12 and -22. North northwest wind 11 to 15 mph, with gusts as high as 25 mph.

    Low: -5 °F

    Gradual
    Clearing

  • Monday

    Monday: Mostly sunny and cold, with a high near 9. Wind chill values between -14 and -24. Northwest wind 10 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 9 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a temperature falling to near 1 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values between -7 and -17. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    Low: 1 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. West southwest wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -5. Northwest wind 6 to 9 mph.

    Low: -5 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 16. West wind 6 to 10 mph, with gusts as high as 15 mph.

    High: 16 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -5.

    Low: -5 °F

    Partly Cloudy

Detailed Forecast

Today
Snow, mainly before 3pm. Patchy blowing snow. High near 14. Wind chill values between -2 and -7. North northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around -5. Wind chill values between -12 and -22. North northwest wind 11 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny and cold, with a high near 9. Wind chill values between -14 and -24. Northwest wind 10 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a temperature falling to near 1 by 8pm, then rising to around 10 during the remainder of the night. Wind chill values between -7 and -17. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 22. West southwest wind 10 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Tuesday Night
Mostly clear, with a low around -5. Northwest wind 6 to 9 mph.
Wednesday
Partly sunny, with a high near 16. West wind 6 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around -5.
Thursday
Mostly sunny, with a high near 13.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Partly sunny, with a high near 17.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Mostly sunny, with a high near 17.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
Last Update:
10:31 am CST Jan 25, 2026
Forecast Valid:
11am CST Jan 25, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

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Chance of Precipitation