Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
26°F
-3°C
| Humidity | 66% |
| Wind Speed | Calm |
| Barometer | 30.07 in (1018.6 mb) |
| Dewpoint | 16°F (-9°C) |
| Visibility | 10.00 mi |
| Last update | 17 Jan 7:52 am CST |
Extended Forecast for
Alto Pass IL
Today
High: 31 °F
Snow Showers
Likely then
Chance Snow
ShowersTonight
Low: 13 °F
Mostly Clear
Sunday
High: 30 °F
Mostly Sunny
Sunday Night
Low: 16 °F
Partly Cloudy
M.L.King Day
High: 24 °F
Mostly Sunny
Monday Night
Low: 11 °F
Mostly Clear
Tuesday
High: 34 °F
Sunny
Tuesday Night
Low: 28 °F
Mostly Clear
Wednesday
High: 44 °F
Partly Sunny
Detailed Forecast
Today
Snow showers likely, mainly before noon, then a chance of flurries after 1pm. Partly sunny, with a high near 31. South wind 5 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Mostly clear, with a low around 13. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 30. Light west wind becoming south southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 16. South southwest wind 9 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
M.L.King Day
Mostly sunny, with a high near 24. Northwest wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 11. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 34. Light south southwest wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 28. South southwest wind 11 to 14 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 44. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 24. Southwest wind around 7 mph becoming north after midnight.
Thursday
A slight chance of rain and snow showers. Mostly sunny, with a high near 35. North wind around 7 mph.
Thursday Night
A slight chance of snow showers. Partly cloudy, with a low around 20. North wind around 6 mph becoming east after midnight.
Friday
A slight chance of rain and snow showers. Mostly sunny, with a high near 37. East wind 6 to 8 mph becoming south southwest in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Alto Pass IL
37.57°N 89.32°W
37.57°N 89.32°W
8:07 am CST Jan 17, 2026
8am CST Jan 17, 2026-6pm CST Jan 23, 2026
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