Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
78°F
26°C
| Humidity | 62% |
| Wind Speed | NW 6 mph |
| Barometer | 29.94 in (1013.3 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 26 Aug 7:54 pm CDT |
Extended Forecast for
Assumption IL
Tonight
Low: 63 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 61 °F
Mostly Clear
Friday
High: 84 °F
Sunny
Friday Night
Low: 58 °F
Mostly Clear
Saturday
High: 86 °F
Mostly Sunny
Saturday Night
Low: 64 °F
Partly Cloudy
Sunday
High: 92 °F
Sunny
Sunday Night
Low: 70 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 63. Northwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 84. North northwest wind 3 to 8 mph.
Thursday Night
Mostly clear, with a low around 61. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. Light east southeast wind.
Saturday
Mostly sunny, with a high near 86. South wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around 64. South southeast wind 5 to 7 mph.
Sunday
Sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny and hot, with a high near 95.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny and hot, with a high near 95.
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)
7:36 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
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