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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 87%
Wind Speed SW 13 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 26 Dec 8:52 am CST
Extended Forecast for

3 Miles SW Vergennes IL

  • Today

    Today: Partly sunny, with a high near 71. Southwest wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread fog, mainly between 2am and 5am. Otherwise, mostly cloudy, with a low around 47. North northwest wind 5 to 7 mph becoming light and variable.

    Low: 47 °F

    Partly Cloudy
    then Fog

  • Saturday

    Saturday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. East wind 5 to 10 mph becoming south in the afternoon.

    High: 68 °F

    Areas Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 63. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Cloudy

  • Sunday

    Sunday: Showers likely, mainly after noon. Cloudy, with a high near 72. South southwest wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Low around 25. Blustery, with a southwest wind 18 to 24 mph becoming northwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%.

    Low: 25 °F

    Blustery.
    Showers then
    Chance
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 30. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 33 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Northwest wind 7 to 15 mph, with gusts as high as 22 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. Northwest wind 7 to 9 mph becoming southwest in the afternoon.

    High: 36 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 71. Southwest wind 6 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.
Tonight
Widespread fog, mainly between 2am and 5am. Otherwise, mostly cloudy, with a low around 47. North northwest wind 5 to 7 mph becoming light and variable.
Saturday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 68. East wind 5 to 10 mph becoming south in the afternoon.
Saturday Night
Cloudy, with a low around 63. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday
Showers likely, mainly after noon. Cloudy, with a high near 72. South southwest wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Sunday Night
Rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Low around 25. Blustery, with a southwest wind 18 to 24 mph becoming northwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 30. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 7 to 15 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 36. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. West southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 42. West southwest wind around 7 mph becoming northwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 23. Northwest wind 5 to 7 mph.
New Year's Day
Partly sunny, with a high near 36. West wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Vergennes IL
 37.86°N 89.39°W
Last Update:
8:46 am CST Dec 26, 2025
Forecast Valid:
9am CST Dec 26, 2025-6pm CST Jan 1, 2026
 
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Additional Resources

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Chance of Precipitation