Pittsburgh, PA – Monday will bring the hottest stretch of the week to western Pennsylvania, with afternoon highs climbing to 92°F under mostly clear skies. Heat and humidity will push conditions toward the uncomfortable range for those outdoors during peak daylight hours.
According to the National Weather Service in Pittsburgh, light southeast winds early will give way to calmer air, allowing heat to build steadily through the day. Residents are urged to limit strenuous outdoor activity between noon and 5 p.m., drink plenty of water, and check on vulnerable neighbors.
The heat streak continues into Tuesday with a high near 93°F, but a shift arrives by late afternoon as scattered showers and isolated thunderstorms develop, especially east of the city. This storm potential expands Tuesday night and into Wednesday, with some cells capable of producing brief downpours and lightning.
While Monday’s conditions will be ideal for outdoor dining or poolside plans, Tuesday afternoon onward may disrupt activities, especially for commuters or those attending outdoor events. The midweek pattern remains unsettled, with storm chances persisting through Wednesday night.
Five Day Pittsburgh, PA Forecast:
- Sunday: Mostly sunny and hot. High 90°F, low 67°F
- Monday: Mostly clear and hot. High 92°F, low 70°F
- Tuesday: Sunny early, then slight chance of storms after 2 p.m. High 93°F, low 72°F
- Wednesday: Showers and thunderstorms likely. High 89°F, low 69°F
- Thursday: Chance of showers and storms. High 86°F, low 66°F
