Milwaukee wakes up on the mild side Monday, May 4, 2026, with clear skies and about 50°F at General Mitchell International Airport (KMKE), and it only gets warmer from there. Afternoon highs are expected to top out near 78°F as southwest winds strengthen, and forecasters are flagging an elevated fire-weather concern as humidity dips and gusts pick up. A slight chance of showers and thunderstorms comes into play after about 5 p.m., followed by a cooler push of northwest winds overnight and a low near 44°F.
Afternoon Winds Crank Up
Southwest winds are forecast to ramp up to around 5–20 mph, with gusts pushing into the 30s by mid to late afternoon. That means lawn chairs, trash bins, and other loose items could get nudged around along the lakefront and on exposed roadways. Out on the water, a short Gale Warning covers the northern third of Lake Michigan from 10 a.m. to 4 p.m. Monday, while nearshore Small Craft Advisories are set to continue into the evening. Mariners and lakeshore travelers are urged to keep tabs on local conditions and secure loose gear, according to NWS Milwaukee.
Fire Danger Ticks Higher
Relative humidity values could fall into the 20–30 percent range during the afternoon while sustained southwest winds hover around 15–20 mph, a combo that can fuel rapid fire spread in dry grasses and brush. Recent rains have helped keep fuels from reaching truly critical levels in many locations, but officials are still urging residents to skip outdoor burning and to double-check daily restrictions before lighting any open flame. For current daily burn restrictions and permit details, residents can call the WisBURN hotline or visit the permit page, according to Wisconsin DNR.
Slight Shot At Evening Storms
A slight chance of showers and thunderstorms is expected to develop after about 5 p.m. Monday and linger into the evening as a cold front moves through. Most spots around the metro are likely to see little or no rain, but a few stronger cells could kick out brief, gusty winds. Rainfall totals where it does fall should stay on the light side, generally under a tenth of an inch, with the chance of precipitation running around 20–40 percent in the Milwaukee area. Skies are expected to clear overnight as winds turn to the northwest and temperatures drop into the mid‑40s Monday night, according to NWS Milwaukee.
Looking Ahead This Week
Cooler, drier air settles in Tuesday and Wednesday, bringing highs back to the mid‑50s and overnight lows into the upper 30s. Patchy frost is possible in low‑lying spots both Tuesday and Wednesday nights, so gardeners may want to protect sensitive plants. The rest of the week trends quieter and more seasonable, with highs rebounding into the low 60s by Saturday and only modest chances for rain into the weekend.
