Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
38°F
3°C
| Humidity | 65% |
| Wind Speed | NW 16 G 23 mph |
| Barometer | 30.03 in (1017.3 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 12 Nov 9:54 pm CST |
Extended Forecast for
Decatur IL
Tonight
Low: 32 °F
Increasing
CloudsFriday
High: 43 °F
Partly Sunny
Friday Night
Low: 26 °F
Mostly Clear
Saturday
High: 46 °F
Sunny
Saturday Night
Low: 27 °F
Clear
Sunday
High: 49 °F
Sunny
Sunday Night
Low: 28 °F
Mostly Clear
Monday
High: 50 °F
Sunny
Monday Night
Low: 29 °F
Clear
Detailed Forecast
Tonight
Increasing clouds, with a low around 32. North northwest wind around 10 mph, with gusts as high as 16 mph.
Friday
Partly sunny, with a high near 43. North northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 26. North northwest wind 3 to 8 mph.
Saturday
Sunny, with a high near 46. North northwest wind 3 to 6 mph.
Saturday Night
Clear, with a low around 27. Calm wind.
Sunday
Sunny, with a high near 49. Calm wind.
Sunday Night
Mostly clear, with a low around 28. Calm wind.
Monday
Sunny, with a high near 50.
Monday Night
Clear, with a low around 29.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Clear, with a low around 30.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Partly sunny, with a high near 61.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.84°N 88.97°W (Elev. 676 ft)
39.84°N 88.97°W (Elev. 676 ft)
10:31 pm CST Nov 12, 2026
10pm CST Nov 12, 2026-6pm CST Nov 19, 2026
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