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.

Fair and Windy

45°F

7°C

Humidity 56%
Wind Speed W 26 G 39 mph
Barometer 29.47 in (997.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 20 Feb 12:54 am CST
Extended Forecast for

Forsyth IL

Wind Advisory until February 20, 09:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until February 20, 09:00am

    NOW until 9:00am Fri

    Wind Advisory

  • Overnight

    Low: 31 °F

    Increasing
    Clouds and
    Breezy

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 41. Breezy, with a west wind 16 to 26 mph, with gusts as high as 43 mph.

    High: 41 °F

    Becoming
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. West northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 41. West northwest wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21. Northwest wind 13 to 18 mph, with gusts as high as 25 mph.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 33. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 32 mph.

    High: 33 °F

    Partly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16. Northwest wind around 17 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

Detailed Forecast

Overnight
Increasing clouds, with a low around 31. Breezy, with a west southwest wind 24 to 26 mph, with gusts as high as 46 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 41. Breezy, with a west wind 16 to 26 mph, with gusts as high as 43 mph.
Friday Night
Mostly clear, with a low around 24. West northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 41. West northwest wind 8 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 21. Northwest wind 13 to 18 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 33. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 32 mph.
Sunday Night
Partly cloudy, with a low around 16. Northwest wind around 17 mph, with gusts as high as 24 mph.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Partly sunny, with a high near 45. Breezy.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 50.
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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:
9:41 pm CST Feb 19, 2026
Forecast Valid:
1am CST Feb 20, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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