Pittsburgh, PA – Summer’s grip tightens on Pittsburgh this week as high temperatures climb near 90°F by the weekend, with a string of mostly sunny days and mild nights fueling the city’s longest hot stretch so far this August.
According to the National Weather Service, Pittsburgh residents can expect daily highs between 85°F and 91°F through Sunday, with little relief at night as lows hold steady in the mid-60s to upper 60s. Light southeast winds may offer a slight break from the heat, but humidity will keep conditions muggy—especially in neighborhoods from Squirrel Hill to West Mifflin.
Roadways and public transit should run normally, though Port Authority reminds commuters to stay hydrated and seek shade at outdoor stops. No rain is expected through the weekend, but by Monday, there’s a 30% chance for showers and storms, mainly in the afternoon. For now, outdoor plans are safe, but those sensitive to heat should avoid strenuous activity midday and check on elderly neighbors.
Hot, sunny conditions continue into next week. More advisories may follow if temperatures or heat indices climb further.
Five Day Forecast for Pittsburgh, PA:
- Wednesday: Mostly sunny, high 85°F, low 64°F
- Thursday: Mostly sunny, high 85°F, low 66°F
- Friday: Mostly sunny, high 88°F, low 66°F
- Saturday: Sunny and hot, high 89°F, low 68°F
- Sunday: Sunny and hot, high 91°F, low 70°F




