Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
54°F
12°C
| Humidity | 49% |
| Wind Speed | W 14 G 25 mph |
| Barometer | 29.99 in (1015.8 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 50°F (10°C) |
| Last update | 18 Mar 2:54 pm CDT |
Extended Forecast for
4 Miles N Forsyth IL
This Afternoon

High: 54 °F
Sunny
Tonight

Low: 38 °F
Increasing
CloudsThursday

High: 66 °F
Decreasing
CloudsThursday Night

Low: 45 °F
Partly Cloudy
Friday

High: 74 °F
Mostly Sunny
Friday Night

Low: 46 °F
Mostly Cloudy
Saturday

High: 74 °F
Mostly Sunny
Saturday Night

Low: 53 °F
Mostly Clear
Sunday

High: 72 °F
Partly Sunny
and Breezy
Detailed Forecast
This Afternoon
Sunny, with a high near 54. West southwest wind around 10 mph, with gusts as high as 16 mph.
Tonight
Increasing clouds, with a low around 38. West wind around 6 mph becoming light and variable.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 66. South southeast wind around 7 mph becoming north northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 45. Northeast wind around 6 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 74. Southwest wind 7 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 46. West wind 6 to 9 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 74. North northwest wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Partly sunny, with a high near 72. Breezy.
Sunday Night
Mostly cloudy, with a low around 33. Breezy.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 55.
Additional Forecasts and Information
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ABOUT 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)
1:26 pm CDT Mar 18, 2026
3pm CDT Mar 18, 2026-6pm CDT Mar 24, 2026


