Milwaukee/ Weather & Environment

Sunny Skies, Gale Gusts as Milwaukee Basks in Weeklong October Warmup

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Published on October 18, 2026
Sunny Skies, Gale Gusts as Milwaukee Basks in Weeklong October WarmupSource: Google Street View

Milwaukee’s Sunday forecast calls for sunshine and a high near 62, with southwest winds around 10 to 15 mph and gusts as high as 30 mph. The Milwaukee forecast calls for clear skies, though the breeze will remain noticeable.

The warmer Sunday follows a National Weather Service frost advisory for Milwaukee County that ran from 1 a.m. to 9 a.m. Saturday. The advisory warned that frost could harm sensitive outdoor plants. The NWS forecasts a sunny high near 62 Sunday. The advisory and its timing and the Sunday forecast mark the change from the weekend’s chilly start.

Sunny Sunday Comes With Strong Southwest Winds

Southwest winds are forecast around 10 to 15 mph through the afternoon, with gusts as high as 30 mph. Rain is not expected, making Sunday a solid option for walks, errands and outdoor plans if you can tolerate a little wind. The National Weather Service forecast for Milwaukee calls for sunny skies and easing winds later in the day.

The National Weather Service has Small Craft Advisories for southern Wisconsin’s Lake Michigan nearshore waters, including areas from Port Washington south to Winthrop Harbor; advisories expire Sunday evening, with the northernmost stretch in this area covered until 10 p.m. Gale Warnings apply to some offshore waters farther north on the lake, not Milwaukee’s nearshore waters. The advisories warn that conditions will be hazardous to small craft. The active marine alerts list the affected zones and expiration times.

Milwaukee’s Warmup Continues Through The Week

Sunday night will stay clear with a low near 41 degrees, and winds should ease. Monday will be sunny with a high near 64, followed by 64 degrees Tuesday and 68 Wednesday. The latest National Weather Service forecast for Milwaukee keeps the start of the week sunny and dry.

The mild stretch is forecast to bring highs in the upper 60s to low 70s during the work week, with mostly sunny skies. Saturday’s outlook remains uncertain, with cloud cover expected to increase ahead of a potential system. The National Weather Service’s Milwaukee forecast keeps the late-week outlook dry and warmer than the chilly weekend mornings.

The forecast warmth stands out against the long-term daily baseline: Milwaukee’s 1981-2010 normal high for Oct. 18 is 59 degrees, and the normal high falls to 56 degrees by Oct. 25. The NWS forecast calls for workweek highs in the upper 60s to low 70s, above the daily normals. Milwaukee’s October daily normals provide a benchmark for the week’s late-October warmth.