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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
65°F
18°C
| Humidity | 73% |
| Wind Speed | SW 14 mph |
| Barometer | 29.80 in (1008.7 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 26 Mar 7:54 am CDT |
Extended Forecast for
Forsyth IL
Today
High: 87 °F
Sunny then
Slight Chance
T-storms and
BreezyTonight

Low: 37 °F
Severe
Thunderstorms
and BreezyFriday
High: 48 °F
Breezy.
Chance
Showers then
Mostly SunnyFriday Night

Low: 28 °F
Mostly Clear
Saturday

High: 51 °F
Sunny
Saturday Night

Low: 38 °F
Partly Cloudy
Sunday

High: 61 °F
Partly Sunny
Sunday Night

Low: 52 °F
Mostly Cloudy
Monday

High: 77 °F
Mostly Sunny
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 87. Breezy, with a southwest wind 13 to 21 mph, with gusts as high as 33 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Some of the storms could be severe. Low around 37. Breezy, with a west southwest wind 14 to 22 mph becoming northeast after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
A 30 percent chance of showers before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 48. Breezy, with a north wind 18 to 21 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 28. North northwest wind 7 to 14 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 51. North wind 6 to 9 mph becoming south in the afternoon.
Saturday Night
Partly cloudy, with a low around 38. South southeast wind 8 to 11 mph, with gusts as high as 18 mph.
Sunday
Partly sunny, with a high near 61. South wind 13 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 77.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 58.
Tuesday
A chance of rain and thunderstorms. Mostly cloudy, with a high near 78. Breezy.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 59.
Wednesday
A chance of rain. Mostly cloudy, with a high near 76. Breezy.
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)
6:46 am CDT Mar 26, 2026
8am CDT Mar 26, 2026-6pm CDT Apr 1, 2026



