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Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Mostly Cloudy
52°F
11°C
| Humidity | 80% |
| Wind Speed | W 10 mph |
| Barometer | 29.85 in (1010.8 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 49°F (9°C) |
| Last update | 5 Nov 8:54 am CST |
Extended Forecast for
Assumption IL
Today
High: 60 °F
Mostly Cloudy
Tonight
Low: 42 °F
Slight Chance
RainFriday
High: 51 °F
Gradual
ClearingFriday Night
Low: 29 °F
Mostly Clear
Saturday
High: 53 °F
Sunny
Saturday Night
Low: 30 °F
Mostly Clear
Sunday
High: 59 °F
Sunny
Sunday Night
Low: 34 °F
Clear
Monday
High: 65 °F
Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 60. West southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of rain between midnight and 1am. Cloudy, with a low around 42. West wind 8 to 11 mph becoming north after midnight. Winds could gust as high as 18 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 51. North wind 9 to 14 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 29. North wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 53. Calm wind becoming northwest around 5 mph.
Saturday Night
Mostly clear, with a low around 30. Calm wind.
Sunday
Sunny, with a high near 59. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Clear, with a low around 34.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 38.
Veterans Day
Mostly sunny, with a high near 63.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Assumption IL
39.51°N 89.05°W (Elev. 636 ft)
39.51°N 89.05°W (Elev. 636 ft)
8:51 am CST Nov 5, 2026
9am CST Nov 5, 2026-6pm CST Nov 11, 2026
Additional Resources
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