Milwaukee is waking up in a sweat this Tuesday morning, with clear skies and about 75°F already logged at Mitchell International. It will not cool off much from there. Expect sunny skies with a high near 97°F on Tuesday, July 14, 2026, and a heat index that will make it feel close to 100°F. Overnight low temperatures will hang in the mid-70s, offering little relief for anyone without air conditioning.
The National Weather Service has issued a Heat Advisory from noon Tuesday, July 14, 2026 through 8 p.m. Wednesday, July 15, 2026, warning that heat index values could reach up to 102°F. The advisory urges people to drink plenty of fluids, stay in air-conditioned rooms, and avoid prolonged outdoor exertion, according to NWS Milwaukee/Sullivan.
Afternoon Heat And Little Nighttime Relief
With sunshine and light southwest winds around 5 mph, temperatures will climb quickly. Hourly forecasts point to the mid-90s by late morning and highs in the mid to upper 90s by mid-afternoon. Dew points in the upper 60s will keep humidity running high, so most places will feel roughly like 100°F this afternoon. A weak lake breeze may nudge cooler air into lakefront neighborhoods late Wednesday, trimming a few degrees near the shoreline.
Where To Cool Off And How To Stay Safe
City-run cooling sites, pools and splash pads are listed on the city website. Call 2-1-1 or check the City of Milwaukee cooling sites page for hours and locations, according to City of Milwaukee Health. Basic precautions include drinking plenty of water, avoiding midday outdoor exertion, never leaving children or pets in parked cars, and checking on older neighbors and relatives.
If you work outdoors, plan heavy tasks for early morning or evening and take frequent breaks in shade or air-conditioned spaces. If someone shows signs of heat stroke - confusion, loss of consciousness, or a very high body temperature - call 911 immediately.
