National Weather Service United States Department of Commerce

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

An Extreme Heat Warning is in effect for all of southern Wisconsin from noon CDT today through 7 PM CDT Tuesday for heat index values around and above 105 degrees each day and above 75 degrees tonight.
Prolonged heatwave continues through Friday, with additional Heat Advisories or Extreme Heat Warnings potentially needed. Increasing precipitation chances late this week may temper heat somewhat, but high humidity and continued warmth overnight will continue to lead to heat impacts through the week.
Even though hot and humid conditions may make the Lake look appealing, a high swim risk is in effect for Lake Michigan beaches in Ozaukee and Sheboygan Counties and moderate swim risk exists for Milwaukee and Racine Counties. Avoid dangerous areas like piers and breakwalls!