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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
51°F
11°C
| Humidity | 54% |
| Wind Speed | Calm |
| Barometer | 30.48 in (1032.4 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 17 Oct 6:54 pm CDT |
Extended Forecast for
4 Miles N Forsyth IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Tonight
Low: 34 °F
Clear then
FrostSunday
High: 68 °F
Frost then
SunnySunday Night
Low: 37 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 47 °F
Mostly Clear
Detailed Forecast
Tonight
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 34. South southeast wind 3 to 6 mph.
Sunday
Widespread frost before 8am. Otherwise, sunny, with a high near 68. South wind 6 to 11 mph, with gusts as high as 16 mph.
Sunday Night
Clear, with a low around 37. South southeast wind 3 to 7 mph.
Monday
Sunny, with a high near 72. South southeast wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 40. Light east wind.
Tuesday
Sunny, with a high near 75. Calm wind becoming east southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 43. Light east southeast wind.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles N Forsyth IL
39.97°N 88.96°W (Elev. 679 ft)
39.97°N 88.96°W (Elev. 679 ft)
7:26 pm CDT Oct 17, 2026
7pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
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