Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

65°F

18°C

Humidity 73%
Wind Speed SW 14 mph
Barometer 29.80 in (1008.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 26 Mar 7:54 am CDT
Extended Forecast for

Forsyth IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 87. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 33 mph.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Some of the storms could be severe.  Low around 37. Breezy, with a west southwest wind 14 to 22 mph becoming northeast after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 37 °F

    Severe
    Thunderstorms
    and Breezy

  • Friday

    Friday: A 30 percent chance of showers before 7am.  Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a north wind 18 to 21 mph, with gusts as high as 31 mph.

    High: 48 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 28. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.

    Low: 28 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. North wind 6 to 9 mph becoming south in the afternoon.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. South southeast wind 8 to 11 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61. South wind 13 to 17 mph, with gusts as high as 25 mph.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 87. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 33 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Some of the storms could be severe. Low around 37. Breezy, with a west southwest wind 14 to 22 mph becoming northeast after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
A 30 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a north wind 18 to 21 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 28. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 51. North wind 6 to 9 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 38. South southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday
Partly sunny, with a high near 61. South wind 13 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 77.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 58.
Tuesday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 78. Breezy.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 59.
Wednesday
A chance of rain. Mostly cloudy, with a high near 76. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
6:46 am CDT Mar 26, 2026
8am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
 
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