Will I be hot?
Will I be hot in Milwaukee in September?
Verdict
Maybe — Warm at times.
Highs around 72°F — comfortable in shade, warm in direct sun.
Day vs. night
Day
72°F
Comfortable
A T-shirt and a light overshirt is enough.
Night
54°F
Cool
You'll want a warm layer after sunset — not a heavy coat.
Why
Milwaukee in September averages highs of 72°F, lows of 54°F, 9 rainy days.
Bring a light layer for the shade and a hat for the sun — the difference between them can feel like 15°F.
See a full outfit plan for warm afternoons →
Milwaukee in September outfit ideas from ForecastStyle.