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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

63°F

17°C

Humidity 84%
Wind Speed SW 6 mph
Barometer 30.19 in (1021.8 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 4 Oct 6:54 am CDT
Extended Forecast for

Blue Mound IL

  • Today

    Today: Sunny, with a high near 86. South wind 6 to 13 mph, with gusts as high as 16 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 58. South wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 7 to 16 mph, with gusts as high as 23 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. South wind 7 to 9 mph, with gusts as high as 15 mph.

    Low: 63 °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 9 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 a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.

    High: 75 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. South wind 6 to 13 mph, with gusts as high as 16 mph.
Tonight
Clear, with a low around 58. South wind 6 to 8 mph, with gusts as high as 15 mph.
Sunday
Sunny, with a high near 86. South wind 7 to 16 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 63. South wind 7 to 9 mph, with gusts as high as 15 mph.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 87. South southwest wind 6 to 9 mph.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 50%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75. West wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Blue Mound IL
 39.69°N 89.12°W (Elev. 614 ft)
Last Update:
6:36 am CDT Oct 4, 2025
Forecast Valid:
7am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation