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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

55°F

13°C

Humidity 53%
Wind Speed SE 10 G 18 mph
Barometer 30.15 in (1020.7 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 May 7:54 am CDT
Extended Forecast for

Blue Mound IL

Blowing Dust Advisory May 12, 12:00pm until May 12, 07:00pm
Click here for hazard details and duration
Blowing Dust Advisory

  • Today

    Today: Patchy blowing dust. Mostly sunny, with a high near 81. Breezy, with a southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 81 °F

    Patchy
    Blowing Dust
    and Breezy

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 9pm and midnight. Patchy blowing dust before 8pm. Mostly cloudy, then gradual clearing toward daybreak, with a low around 54. Southwest wind 9 to 18 mph becoming west northwest after midnight. Winds could gust as high as 30 mph.

    Low: 54 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 69. Breezy, with a north northwest wind 15 to 22 mph, with gusts as high as 30 mph.

    High: 69 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45. North northwest wind 10 to 15 mph becoming light north northeast after midnight. Winds could gust as high as 23 mph.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 1am. Partly cloudy, with a low around 53. South southeast wind 6 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly sunny, with a high near 79. South wind 16 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy blowing dust. Mostly sunny, with a high near 81. Breezy, with a southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 32 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 9pm and midnight. Patchy blowing dust before 8pm. Mostly cloudy, then gradual clearing toward daybreak, with a low around 54. Southwest wind 9 to 18 mph becoming west northwest after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 69. Breezy, with a north northwest wind 15 to 22 mph, with gusts as high as 30 mph.
Wednesday Night
Clear, with a low around 45. North northwest wind 10 to 15 mph becoming light north northeast after midnight. Winds could gust as high as 23 mph.
Thursday
Sunny, with a high near 70. Calm wind becoming south southeast around 5 mph in the afternoon.
Thursday Night
Showers likely after 1am. Partly cloudy, with a low around 53. South southeast wind 6 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly sunny, with a high near 79. South wind 16 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Breezy.
Sunday Night
A chance of showers. Partly cloudy, with a low around 68.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy.
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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:
7:51 am CDT May 12, 2026
Forecast Valid:
9am CDT May 12, 2026-6pm CDT May 18, 2026
 
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