Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
36°F
2°C
| Humidity | 73% |
| Wind Speed | NW 10 mph |
| Barometer | 30.22 in (1023.7 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 29°F (-2°C) |
| Last update | 11 Mar 11:54 pm CDT |
Extended Forecast for
3 Miles WSW Forsyth IL
Overnight

Low: 28 °F
Clear
Thursday

High: 50 °F
Increasing
CloudsThursday Night

Low: 40 °F
Mostly Cloudy
and BreezyFriday

High: 53 °F
Mostly Sunny
and BreezyFriday Night

Low: 32 °F
Mostly Cloudy
Saturday

High: 52 °F
Mostly Cloudy
Saturday Night
Low: 44 °F
Cloudy then
Cloudy and
BreezySunday
High: 61 °F
Breezy. Rain
Likely then
RainSunday Night

Low: 20 °F
Chance
Rain/Snow and
Windy
Detailed Forecast
Overnight
Clear, with a low around 28. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.
Thursday
Increasing clouds, with a high near 50. West wind 7 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 40. Breezy, with a south wind 14 to 19 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 37 mph.
Friday
Mostly sunny, with a high near 53. Breezy, with a west wind 20 to 24 mph, with gusts as high as 33 mph.
Friday Night
Mostly cloudy, with a low around 32. West northwest wind 7 to 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.
Saturday
Mostly cloudy, with a high near 52. East southeast wind 8 to 13 mph, with gusts as high as 18 mph.
Saturday Night
Cloudy, with a low around 44. Breezy, with an east wind 13 to 20 mph, with gusts as high as 26 mph.
Sunday
Rain. High near 61. Breezy. Chance of precipitation is 90%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 20. Windy. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 29. Blustery.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 48.
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)
8:37 pm CDT Mar 11, 2026
12am CDT Mar 12, 2026-6pm CDT Mar 18, 2026


