Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Thunderstorm Rain Fog/Mist
52°F
11°C
| Humidity | 97% |
| Wind Speed | W 16 G 28 mph |
| Barometer | 29.30 in (992.0 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 2.50 mi |
| Wind Chill | 47°F (8°C) |
| Last update | 15 Mar 6:54 pm CDT |
Extended Forecast for
Forsyth IL
Tornado Watch March 15, 07:28pm until March 15, 10:00pm
Wind Advisory March 15, 07:28pm until March 16, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 21 °F
Rain/Snow and
Patchy
Blowing SnowMonday

High: 26 °F
Chance Snow
and Patchy
Blowing SnowMonday Night

Low: 10 °F
Mostly Cloudy
and BlusteryTuesday

High: 26 °F
Mostly Sunny
Tuesday Night
Low: 23 °F
Chance Snow
then Snow
LikelyWednesday

High: 51 °F
Gradual
ClearingWednesday Night

Low: 36 °F
Partly Cloudy
Thursday

High: 63 °F
Mostly Sunny
Detailed Forecast
Tonight
Rain before 11pm, then rain and snow likely between 11pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Patchy blowing snow after midnight. Low around 21. Windy, with a west northwest wind 20 to 25 mph increasing to 26 to 31 mph after midnight. Winds could gust as high as 44 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow, mainly before 1pm. Patchy blowing snow. Cloudy, with a high near 26. Wind chill values between 2 and 8. Windy, with a west northwest wind 28 to 33 mph, with gusts as high as 45 mph.
Monday Night
Mostly cloudy, with a low around 10. Wind chill values between -6 and 4. Blustery, with a west northwest wind 18 to 24 mph, with gusts as high as 32 mph.
Tuesday
Mostly sunny, with a high near 26. Wind chill values between -7 and 3. West northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 23. South southeast wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 51. South wind 13 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 36. South southwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 39.
Friday
Partly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 66.
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)
7:01 pm CDT Mar 15, 2026
7pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026



