National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

70°F

21°C

Humidity 51%
Wind Speed S 9 mph
Barometer 29.86 in (1010.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 12 May 9:54 pm CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 17 mph.

    Low: 60 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 75. South wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 60. South southeast wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 68. East wind 8 to 16 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 68 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 52. North northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. North wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. North wind 7 to 10 mph becoming east after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 17 mph.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 75. South wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 60. South southeast wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 68. East wind 8 to 16 mph becoming north northeast in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 52. North northeast wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 72. North wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 52. North wind 7 to 10 mph becoming east after midnight.
Thursday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 75.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
A chance of showers. Mostly clear, with a low around 60.
Sunday
A chance of showers. Mostly sunny, with a high near 81.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
Last Update:
9:56 pm CDT May 12, 2024
Forecast Valid:
10pm CDT May 12, 2024-6pm CDT May 19, 2024
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation