Pennsylvania Weather ALERT: Thunderstorms, Flash Flood Risk in Pittsburgh Saturday Through Sunday Night

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Pittsburgh, Pennsylvania – A wet and stormy SPRING weekend looms for Pittsburgh, with downpours and thunder rumbling in by Saturday morning and lingering through Monday. Roads like I-376 and Route 28 could see ponding and reduced visibility, especially during peak storm hours Saturday night and Sunday afternoon.

According to the National Weather Service, showers and thunderstorms will move into Allegheny County by 9 a.m. Saturday, with an 80–90% chance of precipitation lasting through Sunday night. Wind gusts may top 25 mph and localized flooding is possible, particularly in low-lying and poor-drainage areas. Rainfall totals could reach over an inch by Monday.

Saturday night could bring the most concentrated storm activity, with lightning and periods of heavy rain expected. Northeast winds will shift by Sunday, keeping skies overcast and storm chances high. Motorists should allow extra travel time and avoid water-covered roads.

Monday stays unsettled with showers likely during the morning commute. Another round of thunderstorms is possible by Monday night, with an 80% rain chance holding into early Tuesday. Prepare for slick roads and intermittent downpours.

By Tuesday, conditions begin to ease. Only a 30% rain chance remains with partly sunny skies returning. Highs will climb back toward the upper 60s and low 70s midweek, offering a brief dry spell.

🌤️ 5-Day Pittsburgh Forecast:

  • Saturday: Thunderstorms likely, high 70°F, winds SW 5–7 mph.
  • Sunday: Showers and storms, high 70°F, 80% chance.
  • Monday: Showers early, more storms possible by night, high 75°F.
  • Tuesday: Partly cloudy, 30% rain chance, high 72°F.
  • Wednesday: Showers return, mostly cloudy, high 71°F.