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.

Overcast

26°F

-3°C

Humidity 84%
Wind Speed NE 20 mph
Barometer 30.32 in (1027.3 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 1 Mar 5:54 am CST
Extended Forecast for

Forsyth IL

  • Today

    Today: Mostly cloudy, with a high near 41. East northeast wind 11 to 15 mph, with gusts as high as 21 mph.

    High: 41 °F

    Mostly Cloudy

  • Tonight

    Tonight: Snow before 3am, then a chance of snow and freezing rain between 3am and 4am, then a chance of snow after 4am. Low around 29. East wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of around an inch possible.

    Low: 29 °F

    Snow Likely
    then Wintry
    Mix

  • Monday

    Monday: A slight chance of snow and freezing rain before 9am, then a slight chance of rain after noon. Cloudy, with a high near 42. East southeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Wintry Mix
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain after midnight. Low around 38. East southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Cloudy then
    Rain

  • Tuesday

    Tuesday: Showers. High near 56. South wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers. Low around 48. East southeast wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 63. South wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 63 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 41. East northeast wind 11 to 15 mph, with gusts as high as 21 mph.
Tonight
Snow before 3am, then a chance of snow and freezing rain between 3am and 4am, then a chance of snow after 4am. Low around 29. East wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of around an inch possible.
Monday
A slight chance of snow and freezing rain before 9am, then a slight chance of rain after noon. Cloudy, with a high near 42. East southeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Rain after midnight. Low around 38. East southeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Showers. High near 56. South wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers. Low around 48. East southeast wind 8 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 63. South wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely. Cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
Showers likely, mainly after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Thursday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Friday
Showers likely. Mostly cloudy, with a high near 69.
Friday Night
Showers likely. Partly cloudy, with a low around 49.
Saturday
Showers likely. Cloudy, with a high near 60.
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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:
6:01 am CST Mar 1, 2026
Forecast Valid:
6am CST Mar 1, 2026-6pm CST Mar 7, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation