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Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

46°F

8°C

Humidity 73%
Wind Speed Calm
Barometer 30.48 in (1032.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 17 Oct 7:54 pm CDT
Extended Forecast for

3 Miles NE Stonington IL

Frost Advisory October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Widespread frost, mainly after 4am.  Otherwise, clear, with a low around 33. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 33 °F

    Clear then
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 68. South wind 5 to 9 mph, with gusts as high as 16 mph.

    High: 68 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. South southeast wind around 5 mph becoming calm  after midnight.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Light south southeast wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Calm wind.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 33. Calm wind becoming south southeast around 5 mph after midnight.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 68. South wind 5 to 9 mph, with gusts as high as 16 mph.
Sunday Night
Clear, with a low around 37. South southeast wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 72. Light south southeast wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Stonington IL
 39.67°N 89.15°W (Elev. 623 ft)
7:26 pm CDT Oct 17, 2026
8pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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