Pittsburgh, PA – A heat surge will grip Pittsburgh starting Sunday, pushing afternoon highs into the 90s and holding through Tuesday before a midweek storm pattern threatens to break the streak. Light southeast winds will offer little relief as humidity builds, making afternoons feel even hotter.
According to the National Weather Service, Sunday’s high will reach 91°F under full sun, followed by overnight lows in the upper 60s. Monday and Tuesday will remain hot, topping out at 92°F and 93°F respectively, with mostly clear skies that could extend outdoor plans but also raise heat safety concerns. Outdoor workers and event-goers are urged to stay hydrated and take midday breaks.
The pattern shifts Wednesday when a 50% chance of showers and thunderstorms develops, with storms possible after 2 p.m. This could bring brief downpours, lightning, and gusty winds to parts of Allegheny, Beaver, and Westmoreland counties.
While the early-week stretch is ideal for late-summer activities, keep an eye on changing conditions midweek. Heat and storm advisories could be issued if temperatures or rainfall rates climb higher than expected.
Five Day Pittsburgh, PA Forecast:
- Sunday: Sunny and hot. High 91°F, low 67°F.
- Monday: Sunny and hot. High 92°F, low 71°F.
- Tuesday: Mostly sunny and hot. High 93°F, low 72°F.
- Wednesday: Chance of showers and storms after 2 p.m. High 90°F, low 70°F.
- Thursday: Chance of showers and storms. High 90°F, low 70°F.
