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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
37°F
3°C
| Humidity | 93% |
| Wind Speed | E 3 mph |
| Barometer | 30.40 in (1029.6 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 19 Oct 1:54 am CDT |
Extended Forecast for
2 Miles SE Bethany IL
Overnight

Low: 36 °F
Clear
Monday

High: 71 °F
Patchy Frost
then SunnyMonday Night

Low: 42 °F
Mostly Clear
Tuesday

High: 72 °F
Sunny
Tuesday Night

Low: 41 °F
Clear
Wednesday

High: 75 °F
Sunny
Wednesday Night

Low: 44 °F
Clear
Thursday

High: 76 °F
Sunny
Thursday Night

Low: 46 °F
Clear
Detailed Forecast
Overnight
Clear, with a low around 36. Calm wind.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 71. Calm wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 72. Calm wind.
Tuesday Night
Clear, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 75. Calm wind.
Wednesday Night
Clear, with a low around 44. Calm wind.
Thursday
Sunny, with a high near 76.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SE Bethany IL
39.61°N 88.7°W (Elev. 650 ft)
39.61°N 88.7°W (Elev. 650 ft)
1:46 am CDT Oct 19, 2026
2am CDT Oct 19, 2026-6pm CDT Oct 25, 2026



