National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms Will Continue to Impact the Southeast Overnight

Strong to severe thunderstorms will continue this evening from eastern Texas into the lower Mississippi and Tennessee Valleys/southern Appalachians. The strongest storms could produce a few strong tornadoes (EF2+), damaging wind gusts, large hail, and locally heavy to excessive rainfall which may results in flash and urban flooding. Read More >

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

45°F

7°C

Humidity 93%
Wind Speed Calm
Barometer 30.02 in (1016.6 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 7 May 1:52 am CDT
Extended Forecast for

Alto Pass IL

  • Overnight

    Overnight: Mostly clear, with a low around 44. Light north wind.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47. South southwest wind 5 to 7 mph.

    Low: 47 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 73. South southwest wind 8 to 14 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Partly cloudy, with a low around 53. South southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Saturday

    Saturday: Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 56. Light south wind.

    Low: 56 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 69. North wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. North wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 44. Light north wind.
Thursday
Sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 47. South southwest wind 5 to 7 mph.
Friday
Sunny, with a high near 73. South southwest wind 8 to 14 mph, with gusts as high as 24 mph.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Partly cloudy, with a low around 53. South southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%.
Saturday
Sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 56. Light south wind.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 69. North wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 47. North wind 5 to 10 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 70. North wind 3 to 7 mph.
Monday Night
Clear, with a low around 50. Light and variable wind.
Tuesday
A slight chance of showers. Sunny, with a high near 76. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 58. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
A slight chance of showers. Sunny, with a high near 79. West wind around 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alto Pass IL
 37.57°N 89.32°W
Last Update:
1:26 am CDT May 7, 2026
Forecast Valid:
2am CDT May 7, 2026-6pm CDT May 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation