Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

64°F

18°C

Humidity 84%
Wind Speed SW 6 mph
Barometer 30.18 in (1021.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 5:54 am CDT
Extended Forecast for

Decatur IL

  • Today

    Today: Sunny, with a high near 87. South southwest wind 5 to 11 mph, with gusts as high as 16 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. South wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South wind 7 to 9 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 1pm.  Mostly sunny, with a high near 87. South southwest wind 6 to 10 mph.

    High: 87 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 63. South wind 6 to 8 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 76. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 16 mph.  Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. South southwest wind 5 to 11 mph, with gusts as high as 16 mph.
Tonight
Clear, with a low around 60. South wind 6 to 8 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 64. South wind 7 to 9 mph.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 87. South southwest wind 6 to 10 mph.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. South wind 6 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.84°N 88.94°W (Elev. 692 ft)
4:36 am CDT Oct 4, 2025
6am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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Additional Resources

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