Pittsburgh, Pennsylvania – Memorial Day plans across Pennsylvania should start sunny and mild, but by Tuesday night, the threat of rain and patchy frost returns. Motorists traveling on elevated roads like U.S. Route 30 and Route 22 should prepare for slippery conditions late Tuesday into Wednesday, especially in rural areas where temperatures dip into the low 40s.
According to the National Weather Service in Pittsburgh, Sunday will bring a high near 67°F with clear skies continuing into Memorial Day. Monday will be the warmest day of the upcoming week, with highs near 72°F and light winds. However, clouds build by Tuesday afternoon, with showers becoming likely after 8 p.m. There’s a 70% chance of precipitation Tuesday night, along with lows near 55°F—raising concern for wet roadways and reduced visibility.
Though Sunday and Monday are free from major weather threats, Tuesday’s system could impact evening travel and outdoor events. Residents in higher elevations and exposed rural valleys may see patchy frost if skies clear late Wednesday night. Spotter activation is not expected, but residents should monitor updates closely.
Looking ahead, rain chances persist into Wednesday and Thursday, with highs in the mid-70s. Thunderstorms are possible Thursday afternoon, followed by partial clearing Friday.
With Memorial Day on the horizon, enjoy the sunshine—but plan around rain and colder nights by midweek. More updates are expected if conditions worsen.
