Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
45°F
7°C
| Humidity | 56% |
| Wind Speed | SE 14 mph |
| Barometer | 30.14 in (1020.8 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 39°F (4°C) |
| Last update | 14 Mar 11:54 am CDT |
Extended Forecast for
Forsyth IL
Wind Advisory March 15, 10:00am until March 16, 07:00am
This Afternoon

High: 54 °F
Partly Sunny
Tonight

Low: 46 °F
Mostly Cloudy
Sunday
High: 64 °F
Windy. Chance
Showers then
Showers
LikelySunday Night
Low: 19 °F
Rain/Snow and
Patchy
Blowing SnowMonday

High: 25 °F
Chance Snow
and Areas
Blowing SnowMonday Night

Low: 9 °F
Mostly Cloudy
and BlusteryTuesday

High: 28 °F
Mostly Sunny
Tuesday Night

Low: 23 °F
Chance Snow
Wednesday
High: 54 °F
Mostly Cloudy
and Breezy
then Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a high near 54. East southeast wind 14 to 16 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a low around 46. East southeast wind 13 to 18 mph, with gusts as high as 28 mph.
Sunday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 64. Windy, with a south wind 22 to 32 mph, with gusts as high as 49 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain showers before 11pm, then snow. Patchy blowing snow after midnight. Low around 19. Wind chill values between 5 and 15. Windy, with a west northwest wind 26 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow before 1pm. Areas of blowing snow. Mostly cloudy, with a high near 25. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 45 mph.
Monday Night
Mostly cloudy, with a low around 9. Blustery, with a west northwest wind 16 to 23 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 28. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 54. Breezy.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 63.
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)
12:01 pm CDT Mar 14, 2026
12pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026



