Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Rain Fog/Mist and Breezy
62°F
17°C
| Humidity | 90% |
| Wind Speed | S 24 G 37 mph |
| Barometer | 29.51 in (999.3 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 2.50 mi |
| Last update | 8 Jan 7:54 pm CST |
Extended Forecast for
2 Miles NE Blue Mound IL
Tonight
Low: 43 °F
Breezy. Heavy
Rain then
Chance RainFriday
High: 50 °F
Mostly Cloudy
and Breezy
then Partly
SunnyFriday Night
Low: 36 °F
Mostly Cloudy
Saturday
High: 42 °F
Chance Rain
then Mostly
SunnySaturday Night
Low: 20 °F
Mostly Cloudy
Sunday
High: 31 °F
Mostly Sunny
Sunday Night
Low: 23 °F
Mostly Clear
Monday
High: 43 °F
Sunny
Monday Night
Low: 33 °F
Partly Cloudy
Detailed Forecast
Tonight
Rain and thunderstorms before 3am, then a slight chance of rain between 3am and 4am. Some of the storms could produce heavy rainfall. Low around 43. Breezy, with a south wind 20 to 26 mph becoming west after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Mostly cloudy, with a high near 50. Breezy, with a west wind 15 to 20 mph becoming north 6 to 11 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 36. Calm wind becoming north northwest around 5 mph after midnight.
Saturday
A 30 percent chance of rain before noon. Partly sunny, with a high near 42. West northwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
Mostly cloudy, with a low around 20. West northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Sunday
Mostly sunny, with a high near 31. West northwest wind 8 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 23. West wind 6 to 9 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.
Monday
Sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 49.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 33.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NE Blue Mound IL
39.71°N 89.09°W (Elev. 610 ft)
39.71°N 89.09°W (Elev. 610 ft)
8:38 pm CST Jan 8, 2026
8pm CST Jan 8, 2026-6pm CST Jan 15, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
