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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

-2°F

-19°C

Humidity 68%
Wind Speed NW 13 mph
Barometer 30.32 in (1028.2 mb)
Dewpoint -10°F (-23°C)
Visibility 10.00 mi
Wind Chill-21°F (-29°C)
Last update 26 Jan 3:54 am CST
Extended Forecast for

4 Miles N Forsyth IL

Cold Weather Advisory January 26, 06:00pm until January 27, 06:00am
Extreme Cold Warning January 26, 04:33am until January 26, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 04:33am until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Today

    High: 8 °F

    Cold

  • Tonight

    Tonight: Patchy blowing snow. Mostly clear, with a temperature rising to around 11 by 5am. Wind chill values between -7 and -17. Southwest wind 9 to 18 mph, with gusts as high as 29 mph.

    Low: 1 °F⇑

    Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Patchy blowing snow before noon. Mostly sunny, with a high near 21. Wind chill values between -5 and 5. West northwest wind 11 to 18 mph, with gusts as high as 25 mph.

    High: 21 °F

    Patchy
    Blowing Snow
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -5. Wind chill values between -7 and -17. West northwest wind 6 to 9 mph.

    Low: -5 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 19. West southwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 19 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -3. West wind 6 to 8 mph becoming north after midnight.

    Low: -3 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 14. North wind around 6 mph.

    High: 14 °F

    Partly Sunny

  • Thursday Night

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

    Low: -5 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny and cold, with a high near 8. Wind chill values between -17 and -27. West northwest wind 10 to 14 mph, with gusts as high as 22 mph.
Tonight
Patchy blowing snow. Mostly clear, with a temperature rising to around 11 by 5am. Wind chill values between -7 and -17. Southwest wind 9 to 18 mph, with gusts as high as 29 mph.
Tuesday
Patchy blowing snow before noon. Mostly sunny, with a high near 21. Wind chill values between -5 and 5. West northwest wind 11 to 18 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around -5. Wind chill values between -7 and -17. West northwest wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 19. West southwest wind 6 to 11 mph, with gusts as high as 17 mph.
Wednesday Night
Partly cloudy, with a low around -3. West wind 6 to 8 mph becoming north after midnight.
Thursday
Partly sunny, with a high near 14. North wind around 6 mph.
Thursday Night
Partly cloudy, with a low around -5.
Friday
Sunny, with a high near 14.
Friday Night
Mostly clear, with a low around -3.
Saturday
Mostly sunny, with a high near 18.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Forsyth IL
 39.97°N 88.96°W (Elev. 679 ft)
Last Update:
3:36 am CST Jan 26, 2026
Forecast Valid:
4am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation