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.

Fair

73°F

23°C

Humidity 32%
Wind Speed S 8 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 19 Mar 4:54 pm CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • Tonight

    Tonight: Mostly clear, with a low around 47. South wind 6 to 9 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. North wind 6 to 8 mph becoming east after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76. East wind 6 to 9 mph becoming southwest in the afternoon.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79. Breezy, with a south southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Breezy, with a north wind 16 to 20 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. South wind 6 to 9 mph, with gusts as high as 15 mph.
Friday
Mostly sunny, with a high near 76. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 45. North wind 6 to 8 mph becoming east after midnight.
Saturday
Sunny, with a high near 76. East wind 6 to 9 mph becoming southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 57. South southwest wind 7 to 14 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 79. Breezy, with a south southwest wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 36. Breezy, with a north wind 16 to 20 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 71. Breezy.
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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:
5:46 pm CDT Mar 19, 2026
Forecast Valid:
5pm CDT Mar 19, 2026-6pm CDT Mar 26, 2026
 
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