Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

82°F

28°C

Humidity 27%
Wind Speed W 16 G 28 mph
Barometer 29.83 in (1009.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Mar 1:54 pm CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. West northwest wind around 17 mph, with gusts as high as 23 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. North northwest wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. East wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 80. Breezy, with a south southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 80 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Breezy, with a north wind 15 to 22 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 52. North wind 10 to 14 mph, with gusts as high as 20 mph.

    High: 52 °F

    Sunny

  • Monday Night

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

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. West northwest wind around 17 mph, with gusts as high as 23 mph.
Tonight
Partly cloudy, with a low around 45. North northwest wind 6 to 10 mph becoming east after midnight. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 77. East wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 60. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 80. Breezy, with a south southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Breezy, with a north wind 15 to 22 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 52. North wind 10 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 75. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
1:26 pm CDT Mar 20, 2026
2pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database