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

70°F

21°C

Humidity 83%
Wind Speed NE 7 mph
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 18 May 6:52 pm CDT
Extended Forecast for

Cobden IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 69. South southeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. South southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 61. West southwest wind 5 to 7 mph becoming calm. Chance of precipitation is 70%.

    Low: 61 °F

    T-storms
    Likely then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North wind around 9 mph. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 56. North northeast wind 6 to 9 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74. North northeast wind around 8 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 59. East northeast wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 76. East southeast wind 6 to 8 mph becoming south southwest in the afternoon.

    High: 76 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. South southwest wind 3 to 8 mph.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 69. South southeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Tuesday
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. South southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Tuesday Night
Showers and thunderstorms likely before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 61. West southwest wind 5 to 7 mph becoming calm. Chance of precipitation is 70%.
Wednesday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. North wind around 9 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 56. North northeast wind 6 to 9 mph.
Thursday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 74. North northeast wind around 8 mph.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 1am. Low around 59. East northeast wind 6 to 8 mph. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 76. East southeast wind 6 to 8 mph becoming south southwest in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. South southwest wind 3 to 8 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Southwest wind around 6 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm in the evening.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South southeast wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Cobden IL
 37.54°N 89.27°W
Last Update:
3:22 pm CDT May 18, 2026
Forecast Valid:
7pm CDT May 18, 2026-6pm CDT May 25, 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