Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

37°F

3°C

Humidity 86%
Wind Speed E 14 mph
Barometer 30.27 in (1025.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 2 Mar 12:54 pm CST
Extended Forecast for

Forsyth IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 42. East wind 9 to 11 mph, with gusts as high as 16 mph.

    High: 42 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 5am.  Mostly cloudy, with a low around 34. East southeast wind 6 to 8 mph.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 3pm.  High near 49. East southeast wind around 6 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am.  Low around 42. East northeast wind 6 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 3pm.  High near 58. East wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 51. South southeast wind 6 to 10 mph, with gusts as high as 16 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before noon.  High near 64. West southwest wind 9 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after midnight.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely, mainly before noon.  Mostly cloudy, with a high near 75. Breezy.  Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 42. East wind 9 to 11 mph, with gusts as high as 16 mph.
Tonight
A 40 percent chance of showers, mainly after 5am. Mostly cloudy, with a low around 34. East southeast wind 6 to 8 mph.
Tuesday
Showers, with thunderstorms also possible after 3pm. High near 49. East southeast wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 42. East northeast wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 3pm. High near 58. East wind 6 to 10 mph becoming south southeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. South southeast wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers, mainly before noon. High near 64. West southwest wind 9 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 49.
Friday
Showers likely, mainly before noon. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 57. Chance of precipitation is 80%.
Saturday
Showers likely. Cloudy, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
1:26 pm CST Mar 2, 2026
1pm CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
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Additional Resources

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