Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Mostly Cloudy
17°F
-8°C
| Humidity | 68% |
| Wind Speed | W 9 mph |
| Barometer | 30.25 in (1025.4 mb) |
| Dewpoint | 8°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 6°F (-14°C) |
| Last update | 17 Mar 9:54 am CDT |
Extended Forecast for
3 Miles WSW Forsyth IL
Today

High: 28 °F
Increasing
CloudsTonight

Low: 25 °F
Snow
Wednesday
High: 54 °F
Chance Snow
then SunnyWednesday Night

Low: 36 °F
Mostly Cloudy
Thursday

High: 63 °F
Decreasing
CloudsThursday Night

Low: 42 °F
Partly Cloudy
Friday

High: 70 °F
Mostly Sunny
Friday Night

Low: 45 °F
Mostly Cloudy
Saturday

High: 72 °F
Mostly Sunny
Detailed Forecast
Today
Increasing clouds, with a high near 28. Wind chill values between 4 and 14. West northwest wind 8 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 17 mph.
Tonight
Snow, mainly after 11pm. Low around 25. South wind 7 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Wednesday
A 30 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 54. South wind 11 to 16 mph becoming west southwest in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 36. West wind around 6 mph becoming south after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 63. South wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 42. North northeast wind around 6 mph becoming south southeast after midnight.
Friday
Mostly sunny, with a high near 70. West southwest wind 6 to 11 mph, with gusts as high as 17 mph.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 68. Breezy.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 52.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Forsyth IL
39.89°N 89.02°W (Elev. 656 ft)
39.89°N 89.02°W (Elev. 656 ft)
9:36 am CDT Mar 17, 2026
10am CDT Mar 17, 2026-6pm CDT Mar 23, 2026



