Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
30°F
-1°C
| Humidity | 82% |
| Wind Speed | Calm |
| Barometer | 30.05 in (1017.9 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Last update | 14 Feb 4:54 am CST |
Extended Forecast for
4 Miles N Forsyth IL
Today
High: 52 °F
Cloudy then
Chance RainTonight

Low: 41 °F
Rain Likely
and Patchy
FogSunday
High: 58 °F
Patchy Fog
then SunnySunday Night

Low: 37 °F
Mostly Clear
Washington's Birthday

High: 60 °F
Partly Sunny
Monday Night

Low: 42 °F
Mostly Cloudy
Tuesday
High: 61 °F
Mostly Cloudy
then Mostly
Cloudy and
BreezyTuesday Night

Low: 52 °F
Mostly Cloudy
and BreezyWednesday

High: 66 °F
Mostly Sunny
and Breezy
Detailed Forecast
Today
A 30 percent chance of rain after 4pm. Cloudy, with a high near 52. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Tonight
Rain likely, mainly before midnight. Patchy fog after 2am. Otherwise, cloudy, with a low around 41. South southeast wind 6 to 8 mph becoming east northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 58. East northeast wind around 8 mph becoming north northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 37. Northwest wind around 6 mph becoming light and variable.
Washington's Birthday
Partly sunny, with a high near 60. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 42. South wind around 10 mph, with gusts as high as 17 mph.
Tuesday
Mostly cloudy, with a high near 61. Breezy, with a south wind 10 to 20 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 52. Breezy.
Wednesday
Mostly sunny, with a high near 66. Breezy.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A chance of rain. Partly sunny, with a high near 60.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 50.
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)
5:36 am CST Feb 14, 2026
5am CST Feb 14, 2026-6pm CST Feb 20, 2026


