Pennsylvania – Warm air surges into western Pennsylvania and clouds thicken quickly, setting the stage for storms that could disrupt travel within hours. Pavement remains mostly dry early, but conditions are expected to deteriorate fast by mid to late afternoon.
According to the National Weather Service, scattered showers and thunderstorms develop after 2 p.m. with highs near 80°F. Some storms may turn strong, producing damaging wind gusts and large hail as a cold front approaches the region .
Across Pittsburgh, Allegheny County, and into Beaver and Washington counties, drivers along I-376, I-79, and I-70 should prepare for sudden downpours and reduced visibility. Storms may intensify quickly, especially north of I-70, where localized flash flooding is possible. Plan extra time and avoid low-lying roadways.
Rain chances increase further into tonight, with showers likely and occasional thunderstorms continuing into early Saturday. Conditions remain unsettled Saturday with another round of storms possible after 5 p.m., followed by a more widespread soaking rain Saturday night into Sunday. Rainfall totals could reach up to half an inch in some areas, leading to ponding on roads.
By Sunday, temperatures drop sharply into the mid-50s with steady showers early, then gradual improvement late. Monday brings partial sunshine with highs near 54°F and only a slight chance of lingering showers.
Looking ahead, a cooler but calmer pattern settles in before warmer spring air returns later next week .
Five Day Outlook For Pittsburgh, PA:
Saturday: High 84°F, 40% chance of storms
Sunday: High 56°F, showers likely (80%)
Monday: High 54°F, 30% chance of showers
Tuesday: High 48°F, mostly sunny
Wednesday: High 62°F, partly sunny
