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.

Mostly Cloudy

25°C

77°F

Humidity 90%
Wind Speed SW 13 km/h
Barometer 1015.1 mb (29.99 in)
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 13 Jul 3:52 pm CDT
Extended Forecast for

Murphysboro IL

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely. Partly sunny, with a steady temperature around 28. Southwest wind around 14 km/h. Chance of precipitation is 70%.

    High: 28 °C

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 22. South southwest wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 60%.

    Low: 22 °C

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 30. Calm wind.

    High: 30 °C

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 20%.

    Low: 22 °C

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 32. Calm wind becoming south southwest 5 to 10 km/h in the morning.

    High: 32 °C

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 23. South wind 3 to 8 km/h.

    Low: 23 °C

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 33. South southwest wind 5 to 11 km/h. Chance of precipitation is 30%.

    High: 33 °C

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 23. South southwest wind 8 to 10 km/h.

    Low: 23 °C

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. South southwest wind 8 to 13 km/h.

    High: 33 °C

    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Partly sunny, with a steady temperature around 28. Southwest wind around 14 km/h. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 22. South southwest wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 30. Calm wind.
Monday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 20%.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 32. Calm wind becoming south southwest 5 to 10 km/h in the morning.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 23. South wind 3 to 8 km/h.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 33. South southwest wind 5 to 11 km/h. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 23. South southwest wind 8 to 10 km/h.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 33. South southwest wind 8 to 13 km/h.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 24. South southwest wind 5 to 10 km/h.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 33. Southwest wind 5 to 10 km/h.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 23. Southwest wind 5 to 8 km/h becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 32. Calm wind becoming west southwest 5 to 10 km/h in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.77°N 89.34°W
Last Update:
2:17 pm CDT Jul 13, 2025
Forecast Valid:
4pm CDT Jul 13, 2025-6pm CDT Jul 19, 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