PITTSBURGH, PA – A damp calm fills the pre-dawn air this Tuesday morning as western Pennsylvania braces for a steady shift. After a clear start, thickening clouds will march in from the Ohio Valley, bringing several rounds of showers through midweek before a cooler, breezier air mass arrives by Thursday.
According to the National Weather Service in Pittsburgh, rain is likely by late Tuesday morning, becoming widespread into the afternoon. The heaviest activity will occur along and south of I-80, with gusts near 20 mph through the evening. Commuters should expect wet pavement, slower travel times, and slick bridges during the late-day drive. Rain tapers slightly Tuesday night but returns again Wednesday, accompanied by gusts up to 30 mph across the ridges and river valleys.
Highs Tuesday reach the low 60s before temperatures dip into the mid-50s Wednesday—a noticeable transition toward more typical late-fall air. By Thursday morning, readings in the upper 30s are expected across much of Allegheny County, with some outlying valleys slipping into the mid-30s. That’s close enough for the season’s first First Fall Freeze threat later this week if skies clear and winds relax overnight.
Residents should prepare for several damp days and cooler nights by securing outdoor furniture, cleaning gutters, and checking heating systems. After Thursday’s final round of light showers, the region will dry out into Friday and Saturday with highs near 55°F—perfect for leaf cleanup, football tailgates, or early Halloween decorating before colder air makes a stronger return next week.
Five-Day Forecast for Pittsburgh, PA:
Tue: 62/44 – Showers likely; breezy south winds.
Wed: 54/43 – Periods of rain; gusts up to 30 mph.
Thu: 54/38 – Showers early; turning cooler.
Fri: 55/37 – Mostly sunny; crisp fall air.
Sat: 57/39 – Partly sunny; dry and seasonable.
