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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

53°F

12°C

Humidity 69%
Wind Speed N 14 mph
Barometer 30.17 in (1021.6 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 6 Nov 10:52 am CST
Extended Forecast for

3 Miles W Alto Pass IL

Freeze Watch November 7, 11:00pm until November 8, 08:00am
Freeze Warning November 6, 11:00pm until November 7, 08:00am
Click here for hazard details and duration
Freeze Watch
Freeze Warning

  • Today

    Today: Partly sunny, with a high near 56. North wind 6 to 9 mph.

    High: 56 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.

    Low: 33 °F

    Mostly Clear
    then Patchy
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 55. Light north wind.

    High: 55 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 1am. Otherwise, mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 63. Calm wind becoming west southwest around 5 mph.

    High: 63 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Light and variable wind.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 43. South southwest wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Calm wind becoming west around 5 mph.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 56. North wind 6 to 9 mph.
Tonight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 33. North wind around 5 mph becoming calm in the evening.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 55. Light north wind.
Saturday Night
Patchy frost after 1am. Otherwise, mostly clear, with a low around 32. Calm wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 63. Calm wind becoming west southwest around 5 mph.
Sunday Night
Clear, with a low around 39. Light and variable wind.
Monday
Sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Clear, with a low around 43. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 68. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 45. Calm wind.
Veterans Day
Mostly sunny, with a high near 66. Calm wind becoming north northwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 42. Light north wind.
Thursday
Mostly sunny, with a high near 59. Light north northwest wind becoming north 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Alto Pass IL
 37.57°N 89.38°W
Last Update:
10:20 am CST Nov 6, 2026
Forecast Valid:
10am CST Nov 6, 2026-6pm CST Nov 12, 2026
 
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