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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Partly Cloudy

83°F

28°C

Humidity 74%
Wind Speed SW 14 mph
Barometer 29.95 in (1013.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 15 Oct 1:52 pm CDT
Extended Forecast for

3 Miles NNW Vergennes IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a steady temperature around 84. Southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 84 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely before 3am, then a chance of showers. Increasing clouds, with a low around 48. Southwest wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Cloudy through mid morning, then becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 29 mph.

    High: 59 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 9 to 16 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 60. North northeast wind 6 to 9 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a steady temperature around 84. Southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely before 3am, then a chance of showers. Increasing clouds, with a low around 48. Southwest wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%.
Friday
Cloudy through mid morning, then becoming mostly sunny, with a high near 59. Breezy, with a northwest wind 16 to 22 mph, with gusts as high as 29 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 9 to 16 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 60. North northeast wind 6 to 9 mph.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 34. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. Calm wind becoming south southeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 38. Calm wind.
Monday
Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 42. Calm wind.
Tuesday
Mostly sunny, with a high near 76. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Sunny, with a high near 78. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Vergennes IL
 37.93°N 89.36°W
Last Update:
1:51 pm CDT Oct 15, 2026
Forecast Valid:
2pm CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
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