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.

Light Rain

52°F

11°C

Humidity 89%
Wind Speed NW 18 G 35 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 49°F (9°C)
Visibility 9.00 mi
Wind Chill47°F (8°C)
Last update 4 Apr 10:54 am CDT
Extended Forecast for

Forsyth IL

  • Today

    Today: A 30 percent chance of showers, mainly before noon. Cloudy, with a steady temperature around 54. Breezy, with a west wind 18 to 20 mph, with gusts as high as 28 mph.

    High: 54 °F

    Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 36 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 53. West northwest wind 14 to 16 mph, with gusts as high as 24 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. West wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Northwest wind 11 to 17 mph, with gusts as high as 23 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Northwest wind 11 to 14 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. East wind around 10 mph, with gusts as high as 17 mph.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. Breezy.

    High: 68 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
A 30 percent chance of showers, mainly before noon. Cloudy, with a steady temperature around 54. Breezy, with a west wind 18 to 20 mph, with gusts as high as 28 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 36. West wind 14 to 18 mph, with gusts as high as 29 mph.
Sunday
Mostly sunny, with a high near 53. West northwest wind 14 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 38. West wind 8 to 10 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 54. Northwest wind 11 to 17 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 29. Northwest wind 11 to 14 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 48. East wind around 10 mph, with gusts as high as 17 mph.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 68. Breezy.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 71. Breezy.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
Last Update:
10:47 am CDT Apr 4, 2026
Forecast Valid:
11am CDT Apr 4, 2026-6pm CDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation