Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
42°F
6°C
| Humidity | 60% |
| Wind Speed | N 13 G 23 mph |
| Barometer | 29.98 in (1015.6 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 12 Nov 3:54 pm CST |
Extended Forecast for
Decatur IL
This Afternoon
High: 46 °F
Partly Sunny
Tonight
Low: 32 °F
Partly Cloudy
Friday
High: 43 °F
Mostly 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
Detailed Forecast
This Afternoon
Partly sunny, with a high near 46. North northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Tonight
Partly cloudy, with a low around 32. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 43. North northwest wind 10 to 14 mph, with gusts as high as 20 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 around 6 mph.
Saturday Night
Clear, with a low around 27. Light north wind.
Sunday
Sunny, with a high near 49. Calm wind.
Sunday Night
Mostly clear, with a low around 28.
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.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Decatur IL
39.86°N 88.94°W (Elev. 682 ft)
39.86°N 88.94°W (Elev. 682 ft)
3:36 pm CST Nov 12, 2026
3pm CST Nov 12, 2026-6pm CST Nov 18, 2026
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