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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

65°F

18°C

Humidity 90%
Wind Speed S 5 mph
Barometer 29.77 in (1007.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 11 Mar 8:52 am CDT
Extended Forecast for

3 Miles SW Vergennes IL

  • Today

    Today: Showers and thunderstorms, mainly before 3pm. Temperature rising to near 67 by noon, then falling to around 48 during the remainder of the day. Breezy, with a southwest wind 10 to 15 mph becoming west northwest 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    High: 67 °F⇓

    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 25 mph.

    Low: 42 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming east northeast after midnight.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66. East wind 7 to 11 mph becoming south southeast in the afternoon.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. South southeast wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 21 to 25 mph, with gusts as high as 36 mph.

    High: 68 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Showers and thunderstorms, mainly before 3pm. Temperature rising to near 67 by noon, then falling to around 48 during the remainder of the day. Breezy, with a southwest wind 10 to 15 mph becoming west northwest 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 10 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 54. Northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 25 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 11 to 16 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind around 6 mph becoming east northeast after midnight.
Saturday
Sunny, with a high near 66. East wind 7 to 11 mph becoming south southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 54. South southeast wind 10 to 18 mph, with gusts as high as 26 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 21 to 25 mph, with gusts as high as 36 mph.
Sunday Night
A chance of showers before 1am. Mostly cloudy, with a low around 27. Blustery, with a northwest wind 22 to 25 mph, with gusts as high as 33 mph.
Monday
Sunny, with a high near 40. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 21. North northwest wind 6 to 11 mph.
Tuesday
Partly sunny, with a high near 44. Northwest wind 6 to 9 mph becoming southwest 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:
8:41 am CDT Mar 11, 2026
Forecast Valid:
9am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation