Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

31°F

-1°C

Humidity 92%
Wind Speed E 15 mph
Barometer 30.33 in (1027.8 mb)
Dewpoint 29°F (-2°C)
Visibility 8.00 mi
Wind Chill20°F (-7°C)
Last update 2 Mar 2:54 am CST
Extended Forecast for

Blue Mound IL

  • Overnight

    Overnight: Snow likely before 4am, then a chance of snow and freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am.  Cloudy, with a low around 31. East wind around 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. Little or no ice accumulation expected.  Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Wintry Mix
    Likely

  • Monday

    Monday: A slight chance of freezing rain before 7am.  Cloudy, with a high near 42. East wind 9 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Freezing Rain
    then Cloudy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm, mainly after 3am.  Cloudy, with a low around 37. East wind 6 to 8 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 37 °F

    Cloudy then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers.  High near 53. South southeast wind 6 to 8 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers, with thunderstorms also possible after midnight.  Low around 47. East northeast wind 6 to 9 mph becoming southeast after midnight.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 47 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after noon.  High near 62. South wind 8 to 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 51. South southwest wind 8 to 11 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: 51 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon.  Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Overnight
Snow likely before 4am, then a chance of snow and freezing rain between 4am and 5am, then a slight chance of freezing rain after 5am. Cloudy, with a low around 31. East wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. Little or no ice accumulation expected. Total nighttime snow accumulation of 1 to 2 inches possible.
Monday
A slight chance of freezing rain before 7am. Cloudy, with a high near 42. East wind 9 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Monday Night
Showers likely and possibly a thunderstorm, mainly after 3am. Cloudy, with a low around 37. East wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers. High near 53. South southeast wind 6 to 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers, with thunderstorms also possible after midnight. Low around 47. East northeast wind 6 to 9 mph becoming southeast after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely, then showers and possibly a thunderstorm after noon. High near 62. South wind 8 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. South southwest wind 8 to 11 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.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers. Partly cloudy, with a low around 52.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 54.
Saturday
A chance of showers. Cloudy, with a high near 64.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Blue Mound IL
 39.69°N 89.12°W (Elev. 614 ft)
1:51 am CST Mar 2, 2026
3am CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
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