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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

73°F

23°C

Humidity 87%
Wind Speed S 8 mph
Barometer 29.90 in (1011.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 16 Jun 10:54 pm CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 87. South southwest wind 5 to 8 mph.

    High: 87 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 10pm. Increasing clouds, with a low around 71. South wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 83. South wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers
    Likely then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 66. Southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 66 °F

    T-storms
    Likely

  • Juneteenth

    Juneteenth: Sunny, with a high near 83. West northwest wind 7 to 9 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Southwest wind 3 to 6 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 87. South southwest wind 5 to 8 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 10pm. Increasing clouds, with a low around 71. South wind 6 to 8 mph, with gusts as high as 16 mph.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 83. South wind 11 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 66. Southwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
Sunny, with a high near 83. West northwest wind 7 to 9 mph.
Thursday Night
Mostly clear, with a low around 66. Southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
Last Update:
11:53 pm CDT Jun 16, 2025
Forecast Valid:
11pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation