National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

29°F

-2°C

Humidity 69%
Wind Speed NE 12 mph
Barometer 30.19 in (1023.2 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 3 Feb 11:54 am CST
Extended Forecast for

4 Miles N Forsyth IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 30. North wind 9 to 11 mph.

    High: 30 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 11. Wind chill values between 3 and 8. North wind 6 to 8 mph.

    Low: 11 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 26. Wind chill values between 4 and 14. North wind around 7 mph.

    High: 26 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Wind chill values between -1 and 4. Light and variable wind becoming west southwest around 6 mph after midnight.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 33. Southwest wind 6 to 14 mph, with gusts as high as 20 mph.

    High: 33 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. South southwest wind around 14 mph becoming west after midnight. Winds could gust as high as 21 mph.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 41. West northwest wind 11 to 15 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 30. North wind 9 to 11 mph.
Tonight
Mostly cloudy, with a low around 11. Wind chill values between 3 and 8. North wind 6 to 8 mph.
Wednesday
Partly sunny, with a high near 26. Wind chill values between 4 and 14. North wind around 7 mph.
Wednesday Night
Partly cloudy, with a low around 8. Wind chill values between -1 and 4. Light and variable wind becoming west southwest around 6 mph after midnight.
Thursday
Mostly cloudy, with a high near 33. Southwest wind 6 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 25. South southwest wind around 14 mph becoming west after midnight. Winds could gust as high as 21 mph.
Friday
Mostly sunny, with a high near 41. West northwest wind 11 to 15 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 34.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 36.
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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:
11:37 am CST Feb 3, 2026
Forecast Valid:
12pm CST Feb 3, 2026-6pm CST Feb 9, 2026
 
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Additional Resources

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