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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 89%
Wind Speed NW 6 mph
Barometer 30.06 in (1017.8 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 6 Nov 4:52 am CST
Extended Forecast for

4 Miles WNW 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: Mostly cloudy through mid morning, then gradual clearing, with a high near 56. North wind 7 to 10 mph.

    High: 56 °F

    Becoming
    Sunny

  • Tonight

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

    Low: 33 °F

    Clear then
    Patchy Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 54. North wind around 5 mph becoming calm in the afternoon.

    High: 54 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 62. Light west southwest wind.

    High: 62 °F

    Areas Frost
    then Sunny

  • Sunday Night

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

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. South southwest wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Tuesday

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

    High: 68 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 56. North wind 7 to 10 mph.
Tonight
Patchy frost after 2am. Otherwise, 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 54. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 32. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 62. Light west southwest wind.
Sunday Night
Clear, with a low around 38. Calm wind.
Monday
Sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 42. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 68. Calm wind becoming west southwest around 5 mph.
Tuesday Night
Clear, with a low around 44. Calm wind.
Veterans Day
A slight chance of showers. Sunny, with a high near 66. Calm wind becoming west around 5 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 44. Light north northwest wind.
Thursday
A slight chance of showers. Mostly sunny, with a high near 61. North northwest wind 3 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Alto Pass IL
 37.59°N 89.38°W
Last Update:
1:46 am CST Nov 6, 2026
Forecast Valid:
5am CST Nov 6, 2026-6pm CST Nov 12, 2026
 
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