Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
61°F
16°C
| Humidity | 78% |
| Wind Speed | S 13 mph |
| Barometer | 30.12 in (1019.7 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Last update | 12 Apr 1:54 am CDT |
Extended Forecast for
4 Miles N Forsyth IL
Overnight

Low: 57 °F
Partly Cloudy
Sunday

High: 80 °F
Partly Sunny
and BreezySunday Night

Low: 61 °F
Showers
Likely and
BreezyMonday
High: 82 °F
Chance
Showers then
Mostly Cloudy
and BreezyMonday Night

Low: 66 °F
Mostly Cloudy
Tuesday

High: 83 °F
Chance
T-storms and
BreezyTuesday Night
Low: 64 °F
T-storms
Likely then
Showers
LikelyWednesday

High: 78 °F
Showers and
BreezyWednesday Night

Low: 62 °F
Showers
Likely
Detailed Forecast
Overnight
Partly cloudy, with a low around 57. South wind 11 to 13 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 80. Breezy, with a south southwest wind 14 to 24 mph, with gusts as high as 38 mph.
Sunday Night
A chance of showers before 10pm, then showers likely and possibly a thunderstorm between 10pm and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 61. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers before 7am. Mostly cloudy, with a high near 82. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
Mostly cloudy, with a low around 66. South southwest wind around 18 mph, with gusts as high as 28 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 28 mph.
Tuesday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 64. South southwest wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 78. Breezy. Chance of precipitation is 90%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers. Partly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 58.
Friday
A chance of showers. Mostly sunny, with a high near 84.
Friday Night
Showers likely. Mostly cloudy, with a low around 60.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 76. 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)
1:16 am CDT Apr 12, 2026
2am CDT Apr 12, 2026-6pm CDT Apr 18, 2026



