Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Baraboo Wisconsin Dells Airport (KDLL)

Lat: 43.52°NLon: 89.77°WElev: 971ft.

Mostly Cloudy

87°F

31°C

Humidity 70%
Wind Speed S 16 mph
Barometer 29.84 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 30 Jun 12:55 pm CDT
Extended Forecast for

Lake Delton WI

Extreme Heat Warning June 30, 01:10pm until July 1, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 01:10pm until July 1, 07:00pm

    NOW until 7:00pm Wed

    Extreme Heat Warning

  • This Afternoon

    High: 94 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am.  Mostly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 75 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms before 11am.  Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Southwest wind 5 to 15 mph.

    High: 92 °F

    Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm.  Low around 74. Southwest wind around 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm.  Partly sunny and hot, with a high near 91. West wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 72. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 88. Southwest wind around 5 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny and hot, with a high near 94. Heat index values as high as 103. Southwest wind around 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Wednesday
A 50 percent chance of showers and thunderstorms before 11am. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Southwest wind 5 to 15 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 74. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny and hot, with a high near 91. West wind 5 to 10 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Independence Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Delton WI
 43.6°N 89.78°W (Elev. 886 ft)
12:57 pm CDT Jun 30, 2026
1pm CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

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