National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

65°F

18°C

Humidity 43%
Wind Speed N 5 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 10 Nov 3:54 pm CST
Extended Forecast for

Stonington IL

  • Tonight

    Tonight: Increasing clouds, with a low around 43. Light and variable wind.

    Low: 43 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: A slight chance of showers between 10am and 11am. Mostly sunny, with a high near 64. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. North northwest wind 10 to 15 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. North northwest wind 11 to 17 mph, with gusts as high as 23 mph.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. North northwest wind 6 to 13 mph, with gusts as high as 17 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44. North northwest wind 8 to 13 mph, with gusts as high as 17 mph.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. North northwest wind around 6 mph becoming calm in the evening.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 43. Light and variable wind.
Veterans Day
A slight chance of showers between 10am and 11am. Mostly sunny, with a high near 64. Light and variable wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 39. North northwest wind 10 to 15 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 48. North northwest wind 11 to 17 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 29. North northwest wind 6 to 13 mph, with gusts as high as 17 mph.
Friday
Sunny, with a high near 44. North northwest wind 8 to 13 mph, with gusts as high as 17 mph.
Friday Night
Mostly clear, with a low around 24. North northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Stonington IL
 39.65°N 89.18°W (Elev. 617 ft)
Last Update:
1:41 pm CST Nov 10, 2026
Forecast Valid:
4pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation