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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Partly Cloudy

70°F

21°C

Humidity 94%
Wind Speed S 5 mph
Barometer 30.02 in
Dewpoint 68°F (20°C)
Visibility 7.00 mi
Last update 26 Aug 7:52 am CDT
Extended Forecast for

5 Miles NNW Vergennes IL

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. West southwest wind 3 to 6 mph.

    High: 90 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88. Calm wind becoming north northwest 5 to 8 mph in the morning.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Light east northeast wind.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Calm wind.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 93 °F

    Sunny

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. West southwest wind 3 to 6 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 88. Calm wind becoming north northwest 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 65. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 87. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. Light east northeast wind.
Saturday
Sunny, with a high near 89. Calm wind.
Saturday Night
Mostly clear, with a low around 65. Calm wind.
Sunday
Sunny, with a high near 93. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 70. South wind 3 to 5 mph.
Monday
Sunny, with a high near 95. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 73. South wind 3 to 5 mph.
Tuesday
Sunny, with a high near 95. Southwest wind 3 to 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Vergennes IL
 37.97°N 89.39°W
Last Update:
8:16 am CDT Aug 26, 2026
Forecast Valid:
10am CDT Aug 26, 2026-6pm CDT Sep 1, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation