Weather Milwaukee Wisconsin (WI)

Southeast Wisconsin set for heat wave next week after pleasant weekend

A mild, sunny weekend gives way to hotter, more humid conditions starting Monday, with daytime highs into the lower 90s and heat-index values near the mid-to-upper 90s.

Southeast Wisconsin set for heat wave next week after pleasant weekend
©Illustration AI Brooke Steiner / news-block.org

After a comfortable, mostly sunny weekend, southeast Wisconsin residents should prepare for a return to summer heat early next week. Temperatures rise sharply Monday through Wednesday, with afternoon readings expected in the lower 90s and humidity pushing how hot it actually feels into the mid-to-upper 90s.

What changes for residents

Saturday and Sunday will be the last mild days before the heat arrives. Expect morning lows in the 60s and afternoon highs in the low-to-mid 80s, with abundant sunshine and little chance of rain. That makes for favorable conditions for outdoor plans this weekend.

Starting Monday, temperatures climb. The hot, humid air mass will linger through at least Wednesday, bringing hotter afternoons and more oppressive humidity during peak daytime hours. After midweek, forecast models show most of the region will remain mostly dry until storm chances begin to increase again later in the week.

"feel" like the mid-to-upper 90s during the peak heating of the day

Forecast snapshot

Day Morning Afternoon high Notes
Saturday 60s Low-to-mid 80s
Sunday 60s Low-to-mid 80s
Monday–Wednesday — Lower 90s

Practical advice

  • Stay hydrated during peak heat hours and limit prolonged outdoor exertion when possible.
  • Check on older adults, young children and people with health conditions who are more vulnerable to heat.
  • Plan outdoor chores or exercise for mornings or evenings when temperatures will be lower this weekend.

The milder weekend offers a brief respite before the hotter stretch. Residents should monitor local forecasts and heat advisories as the pattern evolves early next week.

Brooke Steiner
Wisconsin Correspondent, News Block

Brooke Steiner
Brooke AI Wisconsin Correspondent online

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