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Hottest day of the year is upon us

MADISON (WKOW) — An Excessive Heat Warning is in effect for all of southern Wisconsin.

The last time an Excessive Heat Warning was issued for southern Wisconsin was July 4th of last year.


Friday is on track to be the hottest day of the year with highs in the mid 90s and heat index values from 100° to 110°. An Excessive Heat Warning is in effect through tonight, as the heat index will still be in the 90s through at least midnight.

Saturday will be another hot one with highs near 90° and heat index values slightly lower, between 97° and 102°. An approaching cold front will likely spark some showers and storms in the afternoon, and again at night as the front passes. This will mark the arrival of a much more tolerable airmass for Sunday, one that will last through much of next week.

Your 27 Storm Track extended forecast can be found here.


Longtime exposure to this level of heat is particularly dangerous for the elderly, very young children and pets.

There are a few important things to keep in mind when we experience excessive summer heat.

Stay up to date with the latest weather forecast, especially if you have outdoor plans the next two days.

Branden Borremans

27 Storm Track Meteorologist

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