Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
28°F
-2°C
| Humidity | 58% |
| Wind Speed | NW 14 mph |
| Barometer | 30.25 in (1025.3 mb) |
| Dewpoint | 15°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 17°F (-8°C) |
| Last update | 21 Feb 8:54 pm CST |
Extended Forecast for
Forsyth IL
Tonight

Low: 19 °F
Chance
FlurriesSunday

High: 28 °F
Mostly Cloudy
and BlusterySunday Night
Low: 15 °F
Mostly Cloudy
and Blustery
then Partly
CloudyMonday

High: 31 °F
Sunny
Monday Night

Low: 17 °F
Increasing
CloudsTuesday

High: 47 °F
Partly Sunny
and BreezyTuesday Night

Low: 34 °F
Mostly Cloudy
Wednesday

High: 51 °F
Partly Sunny
Wednesday Night

Low: 28 °F
Chance Rain
Detailed Forecast
Tonight
A chance of flurries after midnight. Mostly cloudy, with a low around 19. Northwest wind 14 to 18 mph, with gusts as high as 26 mph.
Sunday
Mostly cloudy, with a high near 28. Wind chill values between 3 and 13. Blustery, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph.
Sunday Night
Mostly cloudy, with a low around 15. Wind chill values between -1 and 9. Blustery, with a northwest wind 17 to 20 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 31. Wind chill values between -1 and 9. North northwest wind 9 to 18 mph, with gusts as high as 25 mph.
Monday Night
Increasing clouds, with a low around 17. Light and variable wind becoming south 5 to 8 mph after midnight.
Tuesday
Partly sunny, with a high near 47. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Tuesday Night
Mostly cloudy, with a low around 34. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 28.
Thursday
A 40 percent chance of rain. Mostly sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 36.
Saturday
Partly sunny, with a high near 56.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Forsyth IL
39.93°N 88.96°W (Elev. 650 ft)
39.93°N 88.96°W (Elev. 650 ft)
9:36 pm CST Feb 21, 2026
9pm CST Feb 21, 2026-6pm CST Feb 28, 2026


