Pittsburgh, Pennsylvania – Flooding concerns and lightning risks are set to rise across western Pennsylvania Sunday as multiple rounds of rain and thunderstorms move through the region.
According to the National Weather Service in Pittsburgh, training storms may drop heavy downpours on Allegheny County and neighboring areas from late Sunday morning through early Monday. A Hazardous Weather Outlook remains in effect, with minor flooding possible, especially on low-lying roads and highways such as I-376, Route 28, and areas near the Monongahela River. Motorists should avoid water-covered roadways and stay updated on potential advisories.
Rain chances hold steady at 80% Sunday, with scattered thunderstorms expected between 8 a.m. and 2 p.m., then again after 4 p.m. into the night. Gusty winds may accompany the strongest cells. Showers linger into Monday with a chance of late-day thunder, before tapering to isolated rain by Monday night.
The stormy pattern stretches well into the workweek, with a 70% chance of rain Tuesday and more scattered showers possible Wednesday and Thursday. While severe weather isn’t expected at this time, saturated ground could lead to additional minor flooding and delays in drainage-prone zones.
Residents are encouraged to secure outdoor items, check sump pumps, and prepare for potential power interruptions if thunderstorms intensify.
📅 Pittsburgh 5-Day SPRING Forecast at a Glance:
- Sunday: High 72°F, Thunderstorms and showers likely
- Monday: High 75°F, More storms likely in the afternoon
- Tuesday: High 69°F, Showers likely after 2 p.m.
- Wednesday: High 72°F, Chance of showers
- Thursday: High 72°F, Drier, partly cloudy



