Milwaukee/ Weather & Environment

Sunny Start, Stormy Finish: Milwaukee Braces for Afternoon Thunderstorms

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Published on August 18, 2026
Sunny Start, Stormy Finish: Milwaukee Braces for Afternoon ThunderstormsSource: Google Street View

Milwaukee starts Tuesday with clear skies and temperatures in the mid-60s, but the calm opening will give way to a more unsettled afternoon. The high is expected to reach about 81 degrees, with showers and thunderstorms possible after 1 p.m. and into the evening.

Storm Chances Build After 1 P.M.

Westerly winds will increase to 5 to 15 mph as partly sunny skies hold through much of the day. The National Weather Service Milwaukee/Sullivan says storm coverage and timing remain uncertain, but a few stronger storms could bring gusty winds, small hail and locally heavy rain.

The chance of precipitation rises through the afternoon, reaching about 50% by late day. Anyone with outdoor plans should keep an eye on the sky and have a backup option for the late afternoon and evening, when storms are most likely.

No watches or warnings were in effect for Milwaukee County Tuesday morning, according to the National Weather Service Milwaukee/Sullivan.

Clearer, Cooler Midweek Break

Storm chances fade Tuesday night as skies become partly cloudy and temperatures drop to around 64 degrees. Wednesday looks substantially calmer, with sunshine, light northeast winds and a high near 76.

Thursday stays sunny and a little warmer, topping out near 79 degrees. The next rain chance arrives Friday, when mostly sunny skies will mix with a 30% chance of showers and thunderstorms.

Weekend Weather Trends Pleasant

Some showers may linger Friday night into early Saturday, but Saturday should turn mostly sunny with a high near 76. Sunday looks even quieter, with mostly sunny skies and a high around 73.