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

25°F

-4°C

Humidity 75%
Wind Speed S 17 mph
Barometer 30.05 in (1018.8 mb)
Dewpoint 18°F (-8°C)
Visibility 9.00 mi
Wind Chill12°F (-11°C)
Last update 5 Feb 11:54 am CST
Extended Forecast for

4 Miles N Forsyth IL

  • This Afternoon

    This Afternoon: A chance of flurries before 3pm. Mostly cloudy, with a high near 31. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 31 °F

    Chance
    Flurries

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 17 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 40. Breezy, with a west wind 11 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 40 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Wind chill values between 3 and 8. North wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 14 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 28. North northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 28 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. South southeast wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42. South wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of flurries before 3pm. Mostly cloudy, with a high near 31. South southwest wind 10 to 14 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 24. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 17 mph.
Friday
Mostly cloudy, with a high near 40. Breezy, with a west wind 11 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 29 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Wind chill values between 3 and 8. North wind 9 to 15 mph, with gusts as high as 24 mph.
Saturday
Mostly sunny, with a high near 28. North northeast wind 6 to 8 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 20. South southeast wind 8 to 13 mph, with gusts as high as 18 mph.
Sunday
Mostly sunny, with a high near 42. South wind 7 to 13 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Partly sunny, with a high near 56.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain. Cloudy, with a high near 49.
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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:
12:36 pm CST Feb 5, 2026
Forecast Valid:
12pm CST Feb 5, 2026-6pm CST Feb 11, 2026
 
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Additional Resources

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