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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

22°F

-6°C

Humidity 57%
Wind Speed N 16 G 23 mph
Barometer 30.57 in (1035.6 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 23 Feb 9:52 am CST
Extended Forecast for

Vergennes IL

  • Today

    Today: Sunny, with a high near 34. North northwest wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 34 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 19. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 49 °F

    Increasing
    Clouds and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. South southwest wind 13 to 18 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 54. West northwest wind around 6 mph becoming south southeast in the afternoon.

    High: 54 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 38. East southeast wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 38 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers, mainly before noon. Partly sunny, with a high near 51. East southeast wind 8 to 10 mph becoming northwest in the morning.

    High: 51 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 34. North northwest wind 7 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 19. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Increasing clouds, with a high near 49. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind 13 to 18 mph becoming west northwest 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Partly sunny, with a high near 54. West northwest wind around 6 mph becoming south southeast in the afternoon.
Wednesday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 38. East southeast wind 5 to 8 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers, mainly before noon. Partly sunny, with a high near 51. East southeast wind 8 to 10 mph becoming northwest in the morning.
Thursday Night
Mostly clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 59. Calm wind becoming south southwest 5 to 9 mph in the morning.
Friday Night
Clear, with a low around 38. South southwest wind around 7 mph.
Saturday
Sunny, with a high near 64. South southwest wind 6 to 11 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 35. South wind around 10 mph becoming north in the evening.
Sunday
A chance of showers. Partly sunny, with a high near 52. North northeast wind around 11 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vergennes IL
 37.9°N 89.33°W
Last Update:
7:52 am CST Feb 23, 2026
Forecast Valid:
10am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation