Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fog/Mist
51°F
11°C
| Humidity | 100% |
| Wind Speed | SE 14 mph |
| Barometer | 29.82 in (1009.9 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 1.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 27 Dec 5:54 pm CST |
Extended Forecast for
3 Miles WSW Forsyth IL
Wind Advisory December 28, 03:00pm until December 29, 06:00pm
Tonight

Low: 53 °F⇑
Chance Rain
and Patchy
FogSunday
High: 64 °F⇓
Rain Likely
then Rain and
BreezySunday Night
Low: 14 °F
Windy. Chance
Rain/Sleet
then Mostly
CloudyMonday

High: 23 °F
Partly Sunny
and WindyMonday Night
Low: 12 °F
Partly Cloudy
and Blustery
then Mostly
ClearTuesday

High: 28 °F
Mostly Sunny
Tuesday Night

Low: 23 °F
Partly Cloudy
Wednesday

High: 36 °F
Partly Sunny
Wednesday Night

Low: 20 °F
Mostly Cloudy
Detailed Forecast
Tonight
A 30 percent chance of rain after 1am. Patchy fog before 3am. Otherwise, cloudy, with a temperature rising to around 61 by 4am. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 1pm. Temperature rising to near 64 by 11am, then falling to around 48 during the remainder of the day. Breezy, with a south southwest wind 10 to 15 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain before 8pm, then a slight chance of sleet between 8pm and 9pm. Mostly cloudy, with a low around 14. Wind chill values between -4 and 6. Windy, with a west wind 28 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 23. Wind chill values between -6 and 4. Windy, with a west northwest wind 24 to 31 mph, with gusts as high as 46 mph.
Monday Night
Partly cloudy, with a low around 12. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 28. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 23. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 20.
New Year's Day
Mostly sunny, with a high near 31.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 40.
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)
4:53 pm CST Dec 27, 2025
6pm CST Dec 27, 2025-6pm CST Jan 3, 2026



