Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.10 in (1019.0 mb)
Dewpoint 56°F (13°C)
Visibility 7.00 mi
Last update 5 Oct 1:52 am CDT
Extended Forecast for

3 Miles SW Vergennes IL

  • Overnight

    Overnight: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South southeast wind 3 to 6 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 10am.  Mostly sunny, with a high near 82. South wind 5 to 8 mph.  Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 79. Calm wind becoming north northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am.  Mostly cloudy, with a low around 58. North wind 6 to 8 mph.  Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. Northeast wind around 9 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. East northeast wind 5 to 7 mph.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 56. Calm wind.
Sunday
Sunny, with a high near 85. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 64. South southeast wind 3 to 6 mph.
Monday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 82. South wind 5 to 8 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A slight chance of showers before 10pm, then a slight chance of showers and thunderstorms between 10pm and 1am. Mostly cloudy, with a low around 58. North wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 75. Northeast wind around 9 mph.
Wednesday Night
Mostly clear, with a low around 53. East northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 77. East northeast wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 52. Light east wind.
Friday
Sunny, with a high near 80. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 55. Light south southeast wind.
Saturday
Sunny, with a high near 81. Southeast wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Vergennes IL
 37.86°N 89.39°W
1:46 am CDT Oct 5, 2025
2am CDT Oct 5, 2025-6pm CDT Oct 11, 2025
 
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