Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair and Breezy
69°F
21°C
| Humidity | 81% |
| Wind Speed | SW 21 G 31 mph |
| Barometer | 29.79 in (1008.3 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 15 Apr 2:54 am CDT |
Extended Forecast for
4 Miles N Forsyth IL
Overnight

Low: 67 °F
Mostly Cloudy
Wednesday

High: 78 °F
T-storms
LikelyWednesday Night

Low: 61 °F
Showers
LikelyThursday

High: 78 °F
Chance
ShowersThursday Night

Low: 55 °F
Mostly Clear
Friday

High: 83 °F
Mostly Sunny
Friday Night

Low: 52 °F
Showers
Saturday

High: 66 °F
Chance
Showers and
BreezySaturday Night

Low: 37 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 67. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 1pm, then showers and thunderstorms likely after 1pm. Cloudy, with a high near 78. South southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 61. South southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 78. West southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 55. West wind 6 to 9 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 83. South wind 8 to 18 mph, with gusts as high as 25 mph.
Friday Night
Showers likely, then showers and possibly a thunderstorm after 7pm. Low around 52. South wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 66. Breezy.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 56. Breezy.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 74. Breezy.
Additional Forecasts and Information
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ABOUT 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)
1:26 am CDT Apr 15, 2026
3am CDT Apr 15, 2026-6pm CDT Apr 21, 2026



