Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
A Few Clouds
74°F
23°C
| Humidity | 50% |
| Wind Speed | E 7 mph |
| Barometer | 30.10 in (1018.9 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 12:54 pm CDT |
Extended Forecast for
Decatur IL
This Afternoon
High: 76 °F
Mostly Sunny
Tonight
Low: 48 °F
Mostly Clear
Sunday
High: 77 °F
Sunny
Sunday Night
Low: 50 °F
Mostly Clear
Columbus Day
High: 80 °F
Mostly Sunny
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 77 °F
Partly Sunny
Tuesday Night
Low: 55 °F
Mostly Cloudy
Wednesday
High: 71 °F
Mostly Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 76. East northeast wind around 9 mph.
Tonight
Mostly clear, with a low around 48. East wind around 8 mph.
Sunday
Sunny, with a high near 77. Southeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 50. Southeast wind 3 to 7 mph.
Columbus Day
Mostly sunny, with a high near 80. South southeast wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 58. East northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 77. Northeast wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 80.
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)
12:16 pm CDT Oct 11, 2025
1pm CDT Oct 11, 2025-6pm CDT Oct 17, 2025
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