Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
7°F
-14°C
| Humidity | 70% |
| Wind Speed | SW 6 mph |
| Barometer | 30.41 in (1031.1 mb) |
| Dewpoint | -1°F (-18°C) |
| Visibility | 10.00 mi |
| Wind Chill | -4°F (-20°C) |
| Last update | 20 Jan 3:54 am CST |
Extended Forecast for
4 Miles N Forsyth IL
Today

High: 30 °F
Mostly Sunny
Tonight

Low: 24 °F
Mostly Cloudy
Wednesday

High: 37 °F
Decreasing
CloudsWednesday Night

Low: 19 °F
Partly Cloudy
Thursday

High: 29 °F
Mostly Sunny
Thursday Night

Low: 2 °F
Mostly Cloudy
Friday

High: 8 °F
Cold
Friday Night

Low: -2 °F
Mostly Cloudy
Saturday
High: 12 °F
Mostly Cloudy
then Chance
Snow
Detailed Forecast
Today
Mostly sunny, with a high near 30. Wind chill values between -4 and 6. South southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 24. South wind 11 to 18 mph, with gusts as high as 29 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 37. West wind 14 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 19. West southwest wind 13 to 18 mph, with gusts as high as 31 mph.
Thursday
Mostly sunny, with a high near 29. West wind 8 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 2. West northwest wind 7 to 14 mph, with gusts as high as 20 mph.
Friday
Partly sunny and cold, with a high near 8. North wind 13 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 12.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 3.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Sunny, with a high near 22.
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)
3:36 am CST Jan 20, 2026
4am CST Jan 20, 2026-6pm CST Jan 26, 2026



