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Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
51°F
11°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 30.03 in (1016.7 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 11 Oct 7:54 am CDT |
Extended Forecast for
Stonington IL
Today
High: 85 °F
Sunny
Tonight
Low: 62 °F
Increasing
CloudsColumbus Day
High: 92 °F
Decreasing
CloudsMonday Night
Low: 70 °F
Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 66 °F
Chance
T-storms then
Showers
LikelyWednesday
High: 80 °F
Showers
LikelyWednesday Night
Low: 59 °F
Showers
LikelyThursday
High: 76 °F
Showers
Likely
Detailed Forecast
Today
Sunny, with a high near 85. Light and variable wind.
Tonight
Increasing clouds, with a low around 62. Calm wind becoming south around 6 mph after midnight.
Columbus Day
Mostly cloudy, then gradually becoming sunny, with a high near 92. Southwest wind 6 to 13 mph, with gusts as high as 18 mph.
Monday Night
Clear, with a low around 70. Southwest wind 8 to 10 mph, with gusts as high as 17 mph.
Tuesday
Sunny, with a high near 91. West southwest wind around 11 mph, with gusts as high as 17 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 66. Light and variable wind becoming north northeast around 5 mph after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 80. Northeast wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 66.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 59.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Stonington IL
39.63°N 89.18°W (Elev. 620 ft)
39.63°N 89.18°W (Elev. 620 ft)
7:31 am CDT Oct 11, 2026
8am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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