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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

32°C

90°F

Humidity 62%
Wind Speed S 19 km/h
Barometer 1014.1 mb (29.96 in)
Dewpoint 24°C (75°F)
Visibility 16 km
Heat Index38°C (101°F)
Last update 21 Jun 6:52 pm CDT
Extended Forecast for

Murphysboro IL

Heat Advisory until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 24, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Tonight

    Low: 24 °C

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 36. Heat index values as high as 41. South southwest wind 10 to 14 km/h.

    High: 36 °C

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 24. South wind 5 to 11 km/h.

    Low: 24 °C

    Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 35. South southwest wind 5 to 10 km/h.

    High: 35 °C

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. South wind 5 to 10 km/h becoming calm after midnight.

    Low: 24 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34. Calm wind becoming south 5 to 10 km/h in the morning.

    High: 34 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. South wind 3 to 8 km/h.

    Low: 24 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 34. Calm wind becoming south southwest 5 to 10 km/h in the morning.

    High: 34 °C

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 24. South wind 10 to 14 km/h.
Sunday
Sunny and hot, with a high near 36. Heat index values as high as 41. South southwest wind 10 to 14 km/h.
Sunday Night
Clear, with a low around 24. South wind 5 to 11 km/h.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 35. South southwest wind 5 to 10 km/h.
Monday Night
Mostly clear, with a low around 24. South wind 5 to 10 km/h becoming calm after midnight.
Tuesday
Sunny, with a high near 34. Calm wind becoming south 5 to 10 km/h in the morning.
Tuesday Night
Mostly clear, with a low around 24. South wind 3 to 8 km/h.
Wednesday
Sunny, with a high near 34. Calm wind becoming south southwest 5 to 10 km/h in the morning.
Wednesday Night
Mostly clear, with a low around 24. South wind 5 to 10 km/h becoming calm after midnight.
Thursday
Sunny, with a high near 35. South southwest wind 5 to 11 km/h.
Thursday Night
Mostly clear, with a low around 24. South southwest wind 5 to 10 km/h.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 34. Southwest wind 5 to 11 km/h.
Friday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 24. South southwest wind 5 to 10 km/h becoming calm after midnight.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 34. South southwest wind 5 to 11 km/h.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.75°N 89.31°W
Last Update:
5:46 pm CDT Jun 21, 2025
Forecast Valid:
7pm CDT Jun 21, 2025-6pm CDT Jun 28, 2025
 
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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