Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

60°F

16°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 14 Mar 7:52 pm CDT
Extended Forecast for

3 Miles SSE Alto Pass IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Increasing clouds, with a low around 56. South wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 70. Breezy, with a south wind 18 to 24 mph, with gusts as high as 40 mph.  Chance of precipitation is 60%.

    High: 70 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers, mixing with snow after 10pm, then gradually ending. Some thunder is also possible.  Low around 25. Breezy, with a west northwest wind around 21 mph, with gusts as high as 39 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 25 °F

    Rain/Snow and
    Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 33. West northwest wind 16 to 18 mph, with gusts as high as 36 mph.

    High: 33 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. West northwest wind 7 to 15 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 40. Northwest wind around 6 mph becoming southwest in the afternoon.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. South wind 5 to 13 mph, with gusts as high as 22 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. South wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. South southwest wind 5 to 8 mph.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. South wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 18 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers, mixing with snow after 10pm, then gradually ending. Some thunder is also possible. Low around 25. Breezy, with a west northwest wind around 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Mostly cloudy, with a high near 33. West northwest wind 16 to 18 mph, with gusts as high as 36 mph.
Monday Night
Mostly clear, with a low around 16. West northwest wind 7 to 15 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 40. Northwest wind around 6 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. South wind 5 to 13 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 60. South wind 11 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 41. South southwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 70. South southwest wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 48. South wind around 5 mph.
Friday
Sunny, with a high near 74. South southwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 49. West southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 77. West northwest wind 7 to 9 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Alto Pass IL
 37.52°N 89.3°W
6:12 pm CDT Mar 14, 2026
8pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
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Additional Resources

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