Pittsburgh is bracing itself for a weekend of warmth and an uptick in humidity, with dry conditions to persist through early Sunday, according to the latest forecast by the National Weather Service Pittsburgh PA. Residents can expect mostly clear skies and potential for patchy river valley fog in the mornings. Today's daytime highs are anticipated to reach the mid to upper 80s, with downtown Pittsburgh possibly hitting the 90-degree mark.
As high pressure builds across Quebec, the region remains under its influence with weak surface ridging maintaining a dry pattern for the majority of the area. However, an isolated shower or two could pop up across the Laurels or WV ridges later today. "HREF probabilities are less than 10%," the National Weather Service noted. Tonight will mirror this tranquility with lows a few degrees above average—hovering in the lower 60s and upper 50s.
The weekend's forecast continues with a similar theme, albeit with slowly climbing temperatures. Saturday may see surface temps nudging close to 90 degrees Fahrenheit in parts of the city, but heat indices should max out in the low to mid 90s thanks to dew points staying in the 60s. Isolated showers remain a slight possibility in the same areas as Friday due to "upslope flow," with probabilities increasing somewhat to about 20-30% for Saturday afternoon. Come Sunday, scattered showers and thunderstorms are more likely as a cold front approaches, with the greatest chances occurring generally north of Pittsburgh.
Looking ahead into next week, unsettled weather is on the cards for Pittsburgh. Temperature-wise, we're talking a gradual return to more customary readings by mid-week, all thanks to a large ridge centered over the central United States beginning to retrogress. As for aviation interests, VFR conditions are highly probable through Sunday morning, but the impending cold front could spark convective activity by Sunday afternoon and evening, causing some interference.
