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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles NW Wolf Lake IL

Flood Watch until August 20, 07:00am
Severe T-storm Watch until August 20, 03:00am
Click here for hazard details and duration
Flood Watch
Severe T-storm Watch
  •  
    Flood Watch until August 20, 07:00am
    Severe T-storm Watch until August 20, 03:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 69 °F

    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

    High: 86 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. Light north northeast wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind.

    High: 88 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Light north northeast wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 86 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms, mainly between 2am and 4am. Low around 69. Light southeast wind. Chance of precipitation is 80%.
Thursday
A 30 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 68. Light north northeast wind.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 88. Calm wind.
Friday Night
Mostly clear, with a low around 68. Calm wind.
Saturday
Mostly sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. Light north northeast wind.
Sunday
Sunny, with a high near 86. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 65. Light east wind.
Monday
A slight chance of showers before 1pm. Mostly sunny, with a high near 86. Calm wind becoming south southeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 67. East southeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 89. Southeast wind 3 to 6 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 69. Light east wind.
Wednesday
Mostly sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Wolf Lake IL
 37.55°N 89.46°W
Last Update:
9:46 pm CDT Aug 19, 2026
Forecast Valid:
10pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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