PITTSBURGH, Pa. – Sunshine dominates western Pennsylvania this Saturday morning, kicking off a mild Fall weekend before a cooler push arrives for Columbus Day. Skies will stay mostly clear today, making it an ideal day for pumpkin patches, park walks, or early leaf-peeping across Allegheny and Butler Counties. Afternoon highs near 69°F promise comfortable outdoor plans before changes roll in late Sunday.
According to the National Weather Service in Pittsburgh, a few light sprinkles could develop late Sunday as a weak front drifts through from the west. The chance of measurable showers remains low—around 30%—but travelers using I-79 or I-376 should stay alert for wet pavement early Monday. Behind the front, cooler air filters in for Columbus Day with highs near 68°F and a light east breeze, signaling the region’s first hints of a mid-October cooldown.
By Tuesday, another weak disturbance may bring isolated sprinkles before drier and cooler weather returns midweek. Forecasters expect highs to settle in the upper 60s by Wednesday with crisp, clear nights dipping into the lower 40s—classic sweater weather for early Fall outings.
Residents planning outdoor decorations or holiday gatherings should secure lightweight items and plan ahead for shifting temperatures. It’s also a good weekend to check home heating systems before a more pronounced cold snap later in the month.
Five-Day Forecast for Pittsburgh, PA:
Sat: 69/50 – Mostly sunny; ideal for outdoor plans.
Sun: 69/50 – Partly sunny; slight chance of sprinkles.
Mon: 68/48 – Mostly sunny; cooler Fall air for Columbus Day.
Tue: 72/50 – Partly sunny; isolated sprinkles possible.
Wed: 67/41 – Mostly sunny; crisp, cool evening ahead.
