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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

67°F

19°C

Humidity 84%
Wind Speed W 10 G 20 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 3 Apr 12:54 am CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. West wind around 9 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 77. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 20 mph.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 57. South wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 57 °F

    Chance
    T-storms then
    T-storms

  • Saturday

    Saturday: Showers likely before 1pm. Mostly cloudy, with a temperature falling to around 52 by 5pm. Breezy, with a west wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F⇓

    Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. West northwest wind 14 to 18 mph, with gusts as high as 28 mph.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 53. West northwest wind 14 to 17 mph, with gusts as high as 24 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. West wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. West wind around 9 mph, with gusts as high as 15 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 77. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 57. South wind 11 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely before 1pm. Mostly cloudy, with a temperature falling to around 52 by 5pm. Breezy, with a west wind 15 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Partly cloudy, with a low around 36. West northwest wind 14 to 18 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 53. West northwest wind 14 to 17 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 36. West wind 8 to 10 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 67. Breezy.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 73. 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:
1:41 am CDT Apr 3, 2026
Forecast Valid:
3am CDT Apr 3, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation