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Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
72°F
22°C
| Humidity | 66% |
| Wind Speed | NE 3 mph |
| Barometer | 30.25 in (1024.1 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 24 Sep 3:54 pm CDT |
Extended Forecast for
Decatur IL
Tonight
Low: 61 °F
Mostly Cloudy
Friday
High: 72 °F
Mostly Cloudy
Friday Night
Low: 56 °F
Mostly Cloudy
Saturday
High: 72 °F
Mostly Sunny
Saturday Night
Low: 57 °F
Mostly Cloudy
Sunday
High: 73 °F
Partly Sunny
Sunday Night
Low: 55 °F
Partly Cloudy
Monday
High: 76 °F
Sunny
Monday Night
Low: 58 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 61. East northeast wind 3 to 6 mph.
Friday
Mostly cloudy, with a high near 72. East wind 5 to 7 mph.
Friday Night
Mostly cloudy, with a low around 56. East wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 72. East southeast wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 57. Light east wind.
Sunday
Partly sunny, with a high near 73. Calm wind becoming east northeast around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 55. East wind 3 to 5 mph.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66.
Wednesday
Showers likely. Mostly cloudy, with a high near 76.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64.
Thursday
A chance of showers. Mostly sunny, with a high near 74.
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)
2:56 pm CDT Sep 24, 2026
4pm CDT Sep 24, 2026-6pm CDT Oct 1, 2026
Additional Resources
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Hourly Weather Forecast
