Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Thunderstorm Rain Fog/Mist
63°F
17°C
| Humidity | 93% |
| Wind Speed | N 5 mph |
| Barometer | 29.95 in (1013.8 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 5.00 mi |
| Last update | 31 Mar 10:54 pm CDT |
Extended Forecast for
4 Miles N Forsyth IL
Tonight
Low: 44 °F
T-storms
Wednesday
High: 57 °F
Showers then
Showers
LikelyWednesday Night
Low: 55 °F⇑
Chance
T-storms then
Chance
ShowersThursday
High: 74 °F
Chance
Showers and
Breezy then
Showers and
WindyThursday Night
Low: 55 °F
Showers
Likely and
BreezyFriday
High: 78 °F
Partly Sunny
then Chance
ShowersFriday Night
Low: 52 °F
Showers and
BreezySaturday
High: 64 °F
Showers
Likely and
BreezySaturday Night
Low: 33 °F
Chance
Showers and
Breezy
Detailed Forecast
Tonight
Showers and possibly a thunderstorm. Low around 44. Northeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 57. Northeast wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a temperature rising to around 61 by 5am. East northeast wind 14 to 16 mph becoming southeast after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 74. Windy, with a south wind 20 to 25 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely, mainly before 1am. Partly cloudy, with a low around 55. Breezy, with a southwest wind 18 to 23 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 50 percent chance of showers after 1pm. Partly sunny, with a high near 78. South wind 9 to 16 mph, with gusts as high as 23 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 52. Breezy, with a south wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 64. Breezy. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 33. Breezy.
Sunday
Mostly sunny, with a high near 51. Breezy.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 65.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles N Forsyth IL
39.97°N 88.96°W (Elev. 679 ft)
39.97°N 88.96°W (Elev. 679 ft)
10:36 pm CDT Mar 31, 2026
11pm CDT Mar 31, 2026-6pm CDT Apr 7, 2026
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