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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 29.98 in (1015.0 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 26 May 3:52 am CDT
Extended Forecast for

Cobden IL

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a steady temperature around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 75. Calm wind becoming east northeast around 6 mph in the morning. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 64. East northeast wind around 6 mph.

    Low: 64 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. East northeast wind around 7 mph.

    High: 78 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 61. East northeast wind 3 to 6 mph.

    Low: 61 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a steady temperature around 68. Calm wind.
Tuesday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 75. Calm wind becoming east northeast around 6 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A slight chance of thunderstorms before 7pm, then a slight chance of showers after 1am. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the morning. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 64. East northeast wind around 6 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. East northeast wind around 7 mph.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 61. East northeast wind 3 to 6 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 79. East northeast wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 60. East northeast wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 78. Northeast wind 7 to 9 mph.
Sunday Night
Partly cloudy, with a low around 59. Northeast wind 3 to 8 mph.
Monday
Mostly sunny, with a high near 78. Northeast wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cobden IL
 37.52°N 89.24°W
Last Update:
1:46 am CDT May 26, 2026
Forecast Valid:
4am CDT May 26, 2026-6pm CDT Jun 1, 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