Pittsburgh/ Weather & Environment

Soak City: Sunny Saturday in Pittsburgh Before Weeklong Washout

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Published on September 19, 2026
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Pittsburgh's quiet weather will not last long. The city should reach about 79 degrees under partly sunny skies before showers and thunderstorms return overnight and set up a very wet stretch into next week.

Saturday Offers One More Dry Outdoor Window

Saturday afternoon looks like the best chance for outdoor plans, with temperatures climbing through the 70s and only a slight chance of rain during the day. East winds should stay light at around 5 mph, while clouds mix with periods of sunshine.

Saturday Night Turns Wet

The next system is expected late Saturday night into Sunday morning.

Sunday Brings Heavy Rain Risk

Sunday is shaping up as the main weather concern, with heavy rain and convection possible, a high near 78 degrees and a 100% chance of rain. The National Weather Service's Pittsburgh office says heavier rainfall could produce localized flooding and river rises, with higher rainfall totals possible in northern areas.

The latest outlook from the National Weather Service does not list an active watch or warning for Pittsburgh, but the forecast discussion urges residents to monitor conditions as rain bands move through.

Cooler Showers May Hang Around Through Wednesday

Rain chances remain in the forecast Monday through Wednesday, with cooler temperatures expected. The weather service says a prolonged period of rain could raise the risk of areal and river flooding if higher-end rainfall totals develop.

That is a wetter turn from the earlier weekend setup flagged in Hoodline's previous forecast. Friday brings partly sunny skies, a high near 69 degrees and precipitation chances as high as 100%.