Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
49°F
9°C
| Humidity | 35% |
| Wind Speed | NW 13 G 21 mph |
| Barometer | 29.76 in (1007.9 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 44°F (7°C) |
| Last update | 25 Feb 12:54 pm CST |
Extended Forecast for
Decatur IL
This Afternoon

High: 46 °F
Mostly Sunny
Tonight
Low: 29 °F
Chance
Rain/Snow
then Wintry
Mix LikelyThursday

High: 49 °F
Mostly Sunny
Thursday Night

Low: 33 °F
Clear
Friday

High: 65 °F
Sunny
Friday Night

Low: 35 °F
Mostly Clear
Saturday

High: 53 °F
Mostly Sunny
Saturday Night

Low: 26 °F
Mostly Cloudy
Sunday
High: 38 °F
Chance Snow
then Chance
Rain/Snow
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 46. West northwest wind 7 to 10 mph, with gusts as high as 17 mph.
Tonight
Rain and snow likely before 2am, then a chance of snow and freezing rain between 2am and 4am. Mostly cloudy, with a low around 29. Northwest wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 70%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Thursday
Mostly sunny, with a high near 49. East northeast wind around 6 mph becoming west southwest in the afternoon.
Thursday Night
Clear, with a low around 33. South southwest wind 3 to 7 mph.
Friday
Sunny, with a high near 65. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 35. South southwest wind 7 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Saturday
Mostly sunny, with a high near 53. Northeast wind 7 to 13 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely, becoming all snow after midnight. Cloudy, with a low around 23. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 34.
Monday Night
A chance of rain. Cloudy, with a low around 23.
Tuesday
A chance of rain. Mostly cloudy, with a high near 39.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.94°W (Elev. 692 ft)
39.84°N 88.94°W (Elev. 692 ft)
12:36 pm CST Feb 25, 2026
1pm CST Feb 25, 2026-6pm CST Mar 3, 2026



