Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Decatur IL
Overnight
Low: 26 °F
Mostly Clear
Wednesday
High: 46 °F
Sunny
Wednesday Night
Low: 29 °F
Increasing
CloudsThursday
High: 46 °F
Decreasing
CloudsThursday Night
Low: 28 °F
Partly Cloudy
Friday
High: 52 °F
Sunny
Friday Night
Low: 32 °F
Partly Cloudy
Saturday
High: 52 °F
Partly Sunny
Saturday Night
Low: 37 °F
Chance Rain
Detailed Forecast
Overnight
Mostly clear, with a low around 26. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 46. Northwest wind 7 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Increasing clouds, with a low around 29. West northwest wind around 6 mph becoming calm in the evening.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 46. Calm wind becoming south around 5 mph.
Thursday Night
Partly cloudy, with a low around 28. Light south southeast wind.
Friday
Sunny, with a high near 52. South southwest wind 3 to 7 mph.
Friday Night
Partly cloudy, with a low around 32. South wind around 5 mph.
Saturday
Partly sunny, with a high near 52.
Saturday Night
A 30 percent chance of rain. Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 35.
Washington's Birthday
Mostly cloudy, with a high near 56.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Mostly cloudy, with a high near 60.
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)
2:36 am CST Feb 11, 2026
2am CST Feb 11, 2026-6pm CST Feb 17, 2026
Additional Resources
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