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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

38°F

3°C

Humidity 62%
Wind Speed W 3 mph
Barometer 29.66 in (1004.7 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 25 Feb 2:54 am CST
Extended Forecast for

Forsyth IL

  • Overnight

    Overnight: Partly cloudy, with a low around 27. West northwest wind around 8 mph, with gusts as high as 16 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a high near 45. West northwest wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 45 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow, mainly after 9pm. Mostly cloudy, with a low around 26. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.

    Low: 26 °F

    Chance Snow

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 47. East northeast wind 7 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Clear, with a low around 30. South southwest wind around 7 mph.

    Low: 30 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 62. Southwest wind 8 to 18 mph, with gusts as high as 25 mph.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. South southwest wind 9 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. West northwest wind around 8 mph, with gusts as high as 16 mph.
Wednesday
Increasing clouds, with a high near 45. West northwest wind 8 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
A 40 percent chance of snow, mainly after 9pm. Mostly cloudy, with a low around 26. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 47. East northeast wind 7 to 9 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Clear, with a low around 30. South southwest wind around 7 mph.
Friday
Sunny, with a high near 62. Southwest wind 8 to 18 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 35. South southwest wind 9 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 24.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 35.
Monday Night
A chance of rain. Mostly cloudy, with a low around 24.
Tuesday
A chance of rain. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
Last Update:
2:37 am CST Feb 25, 2026
Forecast Valid:
3am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation