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

Mississippi Valley Summer Heat Wave; Severe Thunderstorms and Flooding Possible to the North

A dangerous summer heat wave will continue much of the Plains, Mid/Lower Mississippi Valley, Southeast U.S. today and Thursday. Areas of severe thunderstorms may occur today and again on Thursday from parts of the northern/central Rockies and High Plains into the Ohio Valley and Carolinas. Excessive rainfall over similar areas may bring flash flooding today and Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

96°F

36°C

Humidity 52%
Wind Speed W 10 mph
Barometer 29.93 in (1012.8 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index109°F (43°C)
Last update 6 Jul 1:52 pm CDT
Extended Forecast for

Carbondale IL

Excessive Heat Warning until July 7, 09:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 7, 09:00pm

    NOW until
    9:00pm Thu

    Excessive Heat Warning

  • This
    Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 111. West wind around 5 mph becoming calm.

    Slight Chance
    T-storms

    High: 99 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 78. Light and variable wind.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 78 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Light and variable wind becoming south around 6 mph in the morning.

    Chance
    T-storms

    High: 96 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

    Slight Chance
    T-storms

    Low: 76 °F

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Southwest wind 5 to 7 mph becoming west northwest in the morning.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 96 °F

  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. North northwest wind around 5 mph becoming calm in the evening.

    Chance
    T-storms

    Low: 73 °F

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. North northeast wind 5 to 9 mph.

    Chance
    T-storms

    High: 86 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 68. Northeast wind 3 to 8 mph.

    Mostly Clear

    Low: 68 °F

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 111. West wind around 5 mph becoming calm.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 78. Light and variable wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Light and variable wind becoming south around 6 mph in the morning.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 96. Southwest wind 5 to 7 mph becoming west northwest in the morning.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. North northwest wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. North northeast wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 68. Northeast wind 3 to 8 mph.
Sunday
Sunny, with a high near 86. North northeast wind 6 to 8 mph.
Sunday Night
Clear, with a low around 65. North northeast wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the morning.
Monday Night
Partly cloudy, with a low around 71. Light south southwest wind.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. West northwest wind 3 to 8 mph.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
2:29 pm CDT Jul 6, 2022
Forecast Valid:
2pm CDT Jul 6, 2022-6pm CDT Jul 12, 2022
 
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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