Pittsburgh, Pa. – Western Pennsylvania will swelter under dangerous heat Saturday before thunderstorms bring a chance of relief by late Sunday. Afternoon highs are expected to hit 92°F, with clear skies and little wind to provide a break.
According to the National Weather Service in Pittsburgh, conditions will shift Sunday as showers and thunderstorms become possible after 11 a.m. Rainfall amounts are expected to remain light, but isolated downpours could produce heavier pockets of rain and brief gusty winds. The chance of storms extends into Sunday night and again Tuesday, with the greatest likelihood of widespread rain coming Tuesday afternoon.
Cities across Allegheny, Washington, and Westmoreland counties should prepare for heat-related impacts Saturday, including increased demand on cooling centers and risks for outdoor workers and athletes. Health officials urge residents to stay hydrated, limit strenuous outdoor activity, and check on vulnerable neighbors. Drivers should also be alert for sudden downpours Sunday and Tuesday, which could reduce visibility on major routes such as I-79 and the Pennsylvania Turnpike.
Monday offers a brief return to drier, calmer weather before more showers build midweek. Alerts may be issued if storm risks increase.
Five Day Forecast for Pittsburgh, Pa.:
- Saturday: Sunny and hot, high near 92°F. Clear overnight, low around 69°F.
- Sunday: 50% chance of showers and thunderstorms after 11 a.m., high near 90°F. Chance of storms Sunday night, low around 68°F.
- Monday: Mostly sunny, high near 89°F. Clear at night, low near 68°F.
- Tuesday: 40% chance of showers and thunderstorms, high near 91°F. Showers continue into the night, low near 69°F.
- Wednesday: Partly sunny with a 50% chance of thunderstorms, high near 85°F. Nighttime storms possible, low near 65°F.
