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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

53°F

12°C

Humidity 64%
Wind Speed S 8 mph
Barometer 30.02 in (1016.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 16 Feb 6:52 pm CST
Extended Forecast for

3 Miles SW Vergennes IL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43. South wind around 8 mph.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61. South wind 8 to 18 mph, with gusts as high as 32 mph.

    High: 61 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 56. Breezy, with a south wind 18 to 25 mph, with gusts as high as 34 mph.

    Low: 56 °F

    Decreasing
    Clouds and
    Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Breezy, with a southwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 73 °F

    Mostly Sunny
    and Breezy
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 54. South wind around 8 mph.

    Low: 54 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon. Mostly sunny, with a high near 72. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Mostly clear, with a low around 41. West wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 41 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 54. West wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after midnight. Partly cloudy, with a low around 33. North northwest wind around 6 mph.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43. South wind around 8 mph.
Tuesday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 61. South wind 8 to 18 mph, with gusts as high as 32 mph.
Tuesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 56. Breezy, with a south wind 18 to 25 mph, with gusts as high as 34 mph.
Wednesday
Mostly sunny, with a high near 73. Breezy, with a southwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 54. South wind around 8 mph.
Thursday
Showers likely, mainly after noon. Mostly sunny, with a high near 72. South wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers before midnight. Mostly clear, with a low around 41. West wind 11 to 14 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 54. West wind 7 to 14 mph, with gusts as high as 21 mph.
Friday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 33. North northwest wind around 6 mph.
Saturday
A slight chance of showers after noon. Mostly sunny, with a high near 50. North wind 6 to 8 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 30. North wind around 7 mph.
Sunday
Sunny, with a high near 44. Northwest wind 8 to 11 mph.
Sunday Night
Mostly clear, with a low around 22. North northwest wind around 7 mph.
Monday
Mostly sunny, with a high near 43. North northwest wind around 7 mph.
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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:
5:12 pm CST Feb 16, 2026
Forecast Valid:
7pm CST Feb 16, 2026-6pm CST Feb 23, 2026
 
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Additional Resources

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Chance of Precipitation