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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

41°F

5°C

Humidity 82%
Wind Speed N 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 14 Mar 2:52 am CDT
Extended Forecast for

3 Miles SW Vergennes IL

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Northeast wind around 6 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 66. East northeast wind 7 to 11 mph becoming south southeast in the afternoon. Winds could gust as high as 18 mph.

    High: 66 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. South wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 70. Windy, with a south wind 25 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 70%.

    High: 70 °F

    Mostly Cloudy
    and Windy
    then Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of snow showers. Some thunder is also possible. Low around 24. Blustery, with a south southwest wind 24 to 29 mph becoming west northwest after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%.

    Low: 24 °F

    Showers and
    Breezy then
    Rain/Snow and
    Blustery

  • Monday

    Monday: Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 22 to 26 mph, with gusts as high as 36 mph.

    High: 32 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 28 mph.

    Low: 14 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 38. West northwest wind around 7 mph.

    High: 38 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 29. South wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 25 mph.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Northeast wind around 6 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 66. East northeast wind 7 to 11 mph becoming south southeast in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 55. South wind 9 to 18 mph, with gusts as high as 28 mph.
Sunday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 70. Windy, with a south wind 25 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 70%.
Sunday Night
Rain showers before 1am, then a chance of snow showers. Some thunder is also possible. Low around 24. Blustery, with a south southwest wind 24 to 29 mph becoming west northwest after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 22 to 26 mph, with gusts as high as 36 mph.
Monday Night
Partly cloudy, with a low around 14. Blustery, with a west northwest wind 10 to 20 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 38. West northwest wind around 7 mph.
Tuesday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 29. South wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 25 mph.
Wednesday
Partly sunny, with a high near 60. South southwest wind 14 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 41. South wind 5 to 9 mph.
Thursday
Sunny, with a high near 71. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 47. South southwest wind 5 to 7 mph.
Friday
Sunny, with a high near 71. Southwest wind 7 to 10 mph becoming west northwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Vergennes IL
 37.86°N 89.39°W
Last Update:
1:26 am CDT Mar 14, 2026
Forecast Valid:
3am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
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Additional Resources

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Chance of Precipitation