Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Partly Cloudy
9°F
-13°C
| Humidity | 70% |
| Wind Speed | SW 18 mph |
| Barometer | 30.09 in (1020.3 mb) |
| Dewpoint | 1°F (-17°C) |
| Visibility | 10.00 mi |
| Wind Chill | -9°F (-23°C) |
| Last update | 27 Jan 3:54 am CST |
Extended Forecast for
Forsyth IL
Cold Weather Advisory January 27, 09:00pm until January 28, 10:00am
Today
High: 20 °F
Patchy
Blowing Snow
then Mostly
SunnyTonight

Low: -8 °F
Mostly Clear
Wednesday

High: 20 °F
Mostly Sunny
Wednesday Night

Low: -2 °F
Partly Cloudy
Thursday

High: 14 °F
Mostly Cloudy
Thursday Night

Low: -4 °F
Partly Cloudy
Friday

High: 12 °F
Mostly Sunny
Friday Night

Low: -1 °F
Partly Cloudy
Saturday

High: 17 °F
Mostly Sunny
Detailed Forecast
Today
Patchy blowing snow before noon. Mostly sunny, with a high near 20. Wind chill values between -5 and 3. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around -8. Wind chill values between -11 and -21. West northwest wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 20. Wind chill values between -11 and -21. West wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around -2. Wind chill values between -6 and -11. West wind 5 to 8 mph becoming north northwest after midnight.
Thursday
Mostly cloudy, with a high near 14. North northwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around -4. North wind 5 to 8 mph.
Friday
Mostly sunny, with a high near 12. North wind 8 to 10 mph.
Friday Night
Partly cloudy, with a low around -1.
Saturday
Mostly sunny, with a high near 17.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 6.
Monday
Mostly cloudy, with a high near 27.
Additional Forecasts and Information
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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)
4:16 am CST Jan 27, 2026
4am CST Jan 27, 2026-6pm CST Feb 2, 2026



