Pittsburgh faces a heatwave with temperatures rising into the upper 80s to 90s Fahrenheit, according to the National Weather Service, with a chance of showers and storms by the weekend.

The NWS forecast for Pittsburgh indicates dry conditions with less humidity and mostly sunny skies, with heat and humidity increasing later in the week, potentially leading to showers and thunderstorms by the weekend.

The National Weather Service in Pittsburgh forecasts a week of diverse weather, including fog, a cool spell, and a heatwave with chances of storms and severe heat indices near triple digits.

The National Weather Service predicts a shift in Pittsburgh's weather with potential severe storms today, followed by dry, hot conditions midweek and possible storms again by the weekend.

Pittsburgh expects a mix of showers, thunderstorms, and fog this weekend, with a brief sunny break early next week before humidity and rain chances return.

Pittsburgh faces severe storms and possible flash flooding, with the National Weather Service issuing warnings and monitoring a stalled front for further weather activity.

The National Weather Service forecasts an active weather pattern for Pittsburgh and regions around it, with showers, thunderstorms, and risks of flash flooding.

The NWS in Pittsburgh forecasts a stormy period with possible localized flooding, thunderstorms, and heavy rain, urging residents to stay alert despite the absence of a Flood Watch due to variable conditions and model uncertainties.

The NWS in Pittsburgh forecasts potential weather hazards, including thunderstorms with risks of localized flooding and a hot, sunny day with high heat indices. Conditions may stabilize but resume activity late Saturday.

NWS Pittsburgh forecasts scattered storms and potential flooding in the area today, with a hotter and stormy mid-week expected, and more seasonable temperatures following a front on Friday.

The National Weather Service predicts severe storms and potential flash flooding in Pittsburgh starting Sunday, with risks of damaging winds and excessive rainfall, especially east of I-77.

Pittsburgh faces a hot weekend with potential storms and severe weather threats, including flash floods, as forecasted by the National Weather Service.

Isolated showers and thunderstorms with potential for heavy rain and damaging winds are expected in Pittsburgh, with increased risk of flash flooding and flight delays.