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Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
63°F
17°C
| Humidity | 87% |
| Wind Speed | Calm |
| Barometer | 29.94 in (1013.4 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Last update | 19 Jun 1:52 am CDT |
Extended Forecast for
2 Miles SW Alto Pass IL
Flood Warning June 19, 02:25am until June 19, 01:00pm
NOW until 1:00pm Fri
Flood Warning
Overnight
Low: 63 °F
Partly Cloudy
Juneteenth
High: 83 °F
Mostly Sunny
Friday Night
Low: 64 °F
Partly Cloudy
Saturday
High: 85 °F
Sunny
Saturday Night
Low: 68 °F
Mostly Clear
then Slight
Chance
ShowersSunday
High: 85 °F
Showers
Sunday Night
Low: 71 °F
T-storms then
ShowersMonday
High: 80 °F
Chance
T-storms
Detailed Forecast
Overnight
Partly cloudy, with a low around 63. Calm wind.
Juneteenth
Mostly sunny, with a high near 83. Light north wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 68. South southeast wind around 5 mph becoming calm in the evening.
Sunday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 85. South wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 71. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. West southwest wind around 9 mph becoming north northwest in the afternoon.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light north wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 83. Light west northwest wind.
Wednesday Night
Mostly clear, with a low around 65. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SW Alto Pass IL
37.55°N 89.35°W
37.55°N 89.35°W
1:26 am CDT Jun 19, 2026
2am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
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