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.

Mostly Cloudy

47°F

8°C

Humidity 63%
Wind Speed W 10 mph
Barometer 29.70 in (1005.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 13 Jan 11:54 pm CST
Extended Forecast for

3 Miles WSW Forsyth IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. West northwest wind 11 to 15 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles and flurries before 7am, then a chance of flurries between 7am and 10am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 25 by 5pm. Breezy, with a north northwest wind 16 to 22 mph, with gusts as high as 34 mph.

    High: 34 °F⇓

    Breezy.
    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Wind chill values between 2 and 9. North northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 28. Wind chill values between 2 and 12. North northwest wind around 10 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 28 °F

    Sunny

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a temperature rising to around 30 by 4am. South southwest wind 9 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 24 °F⇑

    Snow Likely

  • Friday

    Friday: Mostly cloudy, with a high near 38. Breezy, with a west wind 16 to 22 mph, with gusts as high as 30 mph.

    High: 38 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. West northwest wind 15 to 18 mph, with gusts as high as 24 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 20.

    High: 20 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. West northwest wind 11 to 15 mph, with gusts as high as 26 mph.
Wednesday
A chance of sprinkles and flurries before 7am, then a chance of flurries between 7am and 10am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 25 by 5pm. Breezy, with a north northwest wind 16 to 22 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 15. Wind chill values between 2 and 9. North northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 28. Wind chill values between 2 and 12. North northwest wind around 10 mph becoming south southwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
Snow likely. Mostly cloudy, with a temperature rising to around 30 by 4am. South southwest wind 9 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Friday
Mostly cloudy, with a high near 38. Breezy, with a west wind 16 to 22 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 14. West northwest wind 15 to 18 mph, with gusts as high as 24 mph.
Saturday
Mostly cloudy, with a high near 20.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 10.
M.L.King Day
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Mostly sunny, with a high near 23.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
Last Update:
9:36 pm CST Jan 13, 2026
Forecast Valid:
12am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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