Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
41°F
5°C
| Humidity | 53% |
| Wind Speed | S 6 mph |
| Barometer | 30.06 in (1018.6 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 37°F (3°C) |
| Last update | 9 Feb 1:54 pm CST |
Extended Forecast for
Decatur IL
This Afternoon
High: 43 °F
Partly Sunny
Tonight
Low: 34 °F
Partly Cloudy
Tuesday
High: 52 °F
Mostly Sunny
Tuesday Night
Low: 26 °F
Mostly Clear
Wednesday
High: 44 °F
Sunny
Wednesday Night
Low: 28 °F
Increasing
CloudsThursday
High: 42 °F
Cloudy
Thursday Night
Low: 29 °F
Mostly Cloudy
Friday
High: 43 °F
Partly Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a high near 43. South wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 34. South wind 8 to 13 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 26. North northwest wind around 8 mph, with gusts as high as 15 mph.
Wednesday
Sunny, with a high near 44. Northwest wind 6 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 28. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Cloudy, with a high near 42. East southeast wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
A chance of rain. Cloudy, with a high near 44.
Saturday Night
Rain likely. Mostly cloudy, with a low around 33.
Sunday
A chance of rain. Partly sunny, with a high near 47.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.94°W (Elev. 692 ft)
39.84°N 88.94°W (Elev. 692 ft)
12:56 pm CST Feb 9, 2026
2pm CST Feb 9, 2026-6pm CST Feb 15, 2026
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