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.

Overcast

72°F

22°C

Humidity 82%
Wind Speed S 16 G 31 mph
Barometer 29.78 in (1008.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 11 Mar 1:52 am CDT
Extended Forecast for

Murphysboro IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 72. South southwest wind around 17 mph, with gusts as high as 30 mph.

    Low: 72 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then a chance of showers. Temperature falling to around 51 by 4pm. Breezy, with a southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    High: 69 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 5 to 7 mph becoming west southwest in the afternoon.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 24 mph.

    Low: 42 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. North wind around 6 mph becoming east after midnight.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. South wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a steady temperature around 72. South southwest wind around 17 mph, with gusts as high as 30 mph.
Wednesday
Showers and thunderstorms before 4pm, then a chance of showers. Temperature falling to around 51 by 4pm. Breezy, with a southwest wind 13 to 20 mph becoming north northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 54. Northwest wind 5 to 7 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 40. North wind around 6 mph becoming east after midnight.
Saturday
Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 54. South wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Partly sunny, with a high near 68. Breezy, with a south wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 39. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 20. North northwest wind 5 to 8 mph.
Tuesday
Partly sunny, with a high near 45. North wind 5 to 8 mph becoming south southwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.77°N 89.34°W
Last Update:
1:21 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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