Fog and mist are hugging Pittsburgh to start Memorial Day morning (Monday, May 25, 2026), trimming visibility in low-lying neighborhoods and along the rivers. Temperatures are sitting in the mid-60s at area observing sites, and the hazy start should lift by mid-morning so the holiday can warm into the upper 70s.
Patchy Fog, Then Mostly Cloudy
Plan on patchy fog through about 9 a.m., then mostly cloudy skies with a high near 78°F and a light northwest breeze around 5 to 6 mph. Any new rain looks minimal, generally under a tenth of an inch in most spots, according to the National Weather Service Pittsburgh.
Localized Flood Risk South Of The City
Forecasters note that the Flood Watch from the weekend has been cancelled after the heaviest rain shifted east, but periodic showers and isolated afternoon storms remain possible mainly south of I-70 through Wednesday. That keeps the urban core largely out of flooding trouble today, though communities farther south should keep an eye on conditions if Memorial Day plans take you near streams or creeks.
Memorial Day Plans
Allegheny County offices are closed for the holiday, and most Memorial Day ceremonies and parades are expected to go on as scheduled. Early fog and spotty drizzle could slow things down for events kicking off before 9 a.m., so build in some extra travel time. For official holiday closures and park information, follow guidance from Allegheny County.
Later This Week
Warmer air settles in Tuesday, with highs near 84°F and only a small chance of an afternoon shower. Shower and thunderstorm chances tick up slightly on Wednesday before high pressure brings drier, cooler conditions Thursday and Friday. If you are trying to lock in outdoor plans, Thursday is currently the best bet for sunshine.
