Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Overcast
78°F
26°C
| Humidity | 93% |
| Wind Speed | W 5 mph |
| Barometer | 30.01 in (1015.5 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 16 Aug 4:54 am CDT |
Extended Forecast for
4 Miles SW Stonington IL
Overnight
Low: 74 °F
Chance
T-stormsSunday
High: 87 °F
Showers
Likely then
Chance
T-stormsSunday Night
Low: 68 °F
Slight Chance
T-stormsMonday
High: 83 °F
Mostly Sunny
Monday Night
Low: 63 °F
Mostly Clear
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 68 °F
Partly Cloudy
then Showers
LikelyWednesday
High: 83 °F
Chance
ShowersWednesday Night
Low: 63 °F
Partly Cloudy
Detailed Forecast
Overnight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Light west southwest wind.
Sunday
Showers and thunderstorms likely, mainly before 3pm. Mostly cloudy, with a high near 87. West northwest wind 5 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 68. Northwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 83. North northwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 63. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Showers likely after 1am. Partly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 50 percent chance of showers before 1pm. Partly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SW Stonington IL
39.61°N 89.24°W (Elev. 623 ft)
39.61°N 89.24°W (Elev. 623 ft)
4:36 am CDT Aug 16, 2026
5am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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