Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

41°F

5°C

Humidity 39%
Wind Speed NW 17 G 37 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 14 Jan 2:52 pm CST
Extended Forecast for

3 Miles SW Vergennes IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. Breezy, with a north northwest wind 20 to 22 mph, with gusts as high as 32 mph.

    High: 44 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 19. Blustery, with a north northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.

    Low: 19 °F

    Clear and
    Blustery then
    Clear

  • Thursday

    Thursday: Sunny, with a high near 34. Northwest wind 6 to 8 mph becoming south southwest in the afternoon.

    High: 34 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers after midnight.  Mostly cloudy, with a low around 26. South wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Friday

    Friday: Partly sunny, with a high near 46. West wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 29. West northwest wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 29 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 10. Northwest wind 7 to 10 mph.

    Low: 10 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 26. West northwest wind 7 to 11 mph becoming southwest in the afternoon.

    High: 26 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 44. Breezy, with a north northwest wind 20 to 22 mph, with gusts as high as 32 mph.
Tonight
Clear, with a low around 19. Blustery, with a north northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 34. Northwest wind 6 to 8 mph becoming south southwest in the afternoon.
Thursday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 26. South wind 5 to 14 mph, with gusts as high as 23 mph.
Friday
Partly sunny, with a high near 46. West wind 11 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 10 to 13 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 29. West northwest wind 11 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 10. Northwest wind 7 to 10 mph.
Sunday
Sunny, with a high near 26. West northwest wind 7 to 11 mph becoming southwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 16. West southwest wind 8 to 11 mph, with gusts as high as 20 mph.
M.L.King Day
Mostly sunny, with a high near 29. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 11. Northwest wind 5 to 8 mph.
Tuesday
Sunny, with a high near 33. West wind 5 to 10 mph becoming south southwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Vergennes IL
 37.86°N 89.39°W
3:16 pm CST Jan 14, 2026
3pm CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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