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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

86°F

30°C

Humidity 45%
Wind Speed SW 5 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 20 Jun 2:52 pm CDT
Extended Forecast for

Wolf Lake IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 86. Light southwest wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 87. South southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 72. South southwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 72 °F

    Heavy Rain

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Mostly cloudy, with a high near 81. West southwest wind 7 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 64. North wind 5 to 9 mph becoming light in the evening. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light northeast wind.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Light northeast wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 86. Light southwest wind.
Tonight
Mostly clear, with a low around 67. Light and variable wind.
Sunday
Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 87. South southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could produce heavy rainfall. Low around 72. South southwest wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Monday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Mostly cloudy, with a high near 81. West southwest wind 7 to 9 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.
Monday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 64. North wind 5 to 9 mph becoming light in the evening. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 82. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 64. Light northeast wind.
Wednesday
Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 65. Light and variable wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 65. Light east wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wolf Lake IL
 37.55°N 89.44°W
Last Update:
2:11 pm CDT Jun 20, 2026
Forecast Valid:
3pm CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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