Hazardous Weather Conditions
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 Chill | 20°F (-7°C) |
| Last update | 2 Mar 2:54 am CST |
Extended Forecast for
Blue Mound IL
Overnight

Low: 31 °F
Wintry Mix
LikelyMonday
High: 42 °F
Slight Chance
Freezing Rain
then CloudyMonday Night
Low: 37 °F
Cloudy then
Showers
LikelyTuesday

High: 53 °F
Showers
Tuesday Night

Low: 47 °F
Showers
Wednesday

High: 62 °F
Showers
Wednesday Night

Low: 51 °F
Showers
Thursday

High: 64 °F
Showers
LikelyThursday Night

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Blue Mound IL
39.69°N 89.12°W (Elev. 614 ft)
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



