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.

Fair

19°F

-7°C

Humidity 59%
Wind Speed NW 12 mph
Barometer 30.09 in (1019.7 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 15 Jan 9:54 am CST
Extended Forecast for

4 Miles N Forsyth IL

  • Today

    Today: Sunny, with a high near 28. Northwest wind 8 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Snow, mainly before midnight. Low around 24. South southwest wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 24 °F

    Snow then
    Chance Snow

  • Friday

    Friday: Mostly cloudy, with a high near 38. West wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 38 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Scattered snow showers, mainly after midnight. Mostly cloudy, with a low around 16. Wind chill values between 4 and 14. West northwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 16 °F

    Mostly Cloudy
    then
    Scattered
    Snow Showers

  • Saturday

    Saturday: Scattered flurries. Mostly cloudy, with a high near 21. Breezy, with a west wind 15 to 20 mph, with gusts as high as 26 mph.

    High: 21 °F

    Scattered
    Flurries and
    Breezy

  • Saturday Night

    Saturday Night: Scattered flurries before midnight. Partly cloudy, with a low around 8. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 8 °F

    Scattered
    Flurries

  • Sunday

    Sunday: Mostly sunny, with a high near 21. Southwest wind 11 to 16 mph, with gusts as high as 22 mph.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 17. Blustery.

    High: 17 °F

    Mostly Sunny
    and Blustery

Detailed Forecast

Today
Sunny, with a high near 28. Northwest wind 8 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph.
Tonight
Snow, mainly before midnight. Low around 24. South southwest wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Friday
Mostly cloudy, with a high near 38. West wind 13 to 18 mph, with gusts as high as 29 mph.
Friday Night
Scattered snow showers, mainly after midnight. Mostly cloudy, with a low around 16. Wind chill values between 4 and 14. West northwest wind 10 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday
Scattered flurries. Mostly cloudy, with a high near 21. Breezy, with a west wind 15 to 20 mph, with gusts as high as 26 mph.
Saturday Night
Scattered flurries before midnight. Partly cloudy, with a low around 8. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 21. Southwest wind 11 to 16 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 8.
M.L.King Day
Mostly sunny, with a high near 17. Blustery.
Monday Night
Mostly clear, with a low around 5.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 14.
Wednesday
Mostly sunny, with a high near 35.
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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:
9:56 am CST Jan 15, 2026
Forecast Valid:
10am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation