Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast and Breezy

67°F

19°C

Humidity 84%
Wind Speed S 23 G 36 mph
Barometer 29.68 in (1004.8 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 28 Dec 10:52 am CST
Extended Forecast for

Vergennes IL

Wind Advisory December 28, 06:00pm until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory
  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe.  High near 70. Breezy, with a south southwest wind 22 to 26 mph becoming west in the afternoon. Winds could gust as high as 34 mph.  Chance of precipitation is 80%.

    High: 70 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a west northwest wind 22 to 28 mph, with gusts as high as 40 mph.

    Low: 20 °F

    Blustery.
    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 30. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 32 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. Northwest wind 9 to 16 mph, with gusts as high as 22 mph.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 35. Northwest wind 6 to 9 mph becoming west southwest in the afternoon.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Southwest wind around 6 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45. West wind 6 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West wind around 6 mph.

    Low: 27 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 45. Northwest wind 6 to 9 mph.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 70. Breezy, with a south southwest wind 22 to 26 mph becoming west in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 80%.
Tonight
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a west northwest wind 22 to 28 mph, with gusts as high as 40 mph.
Monday
Mostly sunny, with a high near 30. Blustery, with a west northwest wind 17 to 23 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 9 to 16 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 9 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 45. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 27. West wind around 6 mph.
New Year's Day
Mostly sunny, with a high near 45. Northwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 24. North wind 3 to 5 mph.
Friday
Partly sunny, with a high near 44. Light and variable wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly cloudy, with a low around 34. South wind around 6 mph.
Saturday
Mostly cloudy, with a high near 52. South southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Vergennes IL
 37.9°N 89.33°W
10:31 am CST Dec 28, 2025
11am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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