The Pittsburgh area can expect warmer temperatures and clear skies, at least for a brief window midweek, according to the latest forecast from the National Weather Service in Pittsburgh. High pressure is bringing dry conditions that are forecast to hold steady through Wednesday. However, this reprieve is only a momentary breath, as Thursday promises to sweep in chances for showers and thunderstorms with the arrival of a cold front.
Residents can expect to bask under a "ridge axis" building across the Upper Ohio Valley today, with temperatures poised to sit around five degrees above average. There is, however, a possibility of haze or smoke making its way to the surface this afternoon, as remnants of the Canadian wildfires burning not far north, as reported by the National Weather Service in Pittsburgh, PA, in their Area Forecast Discussion. They've also predicted that Wednesday will likely be the warmest day of the week, with high temperatures expected in the mid to upper 80s.
Things take a turn on Thursday as a surface cold front slowly approaches the region, likely bringing showers and thunderstorm activity into the picture once again. The threat of severe weather appears low due to limited shear and instability, but the cold front is expected to linger, maintaining unsettled weather in the forecast through Saturday. This front will supposedly stall across the region Thursday night, as outlined by the National Weather Service, with a diurnal trend causing much of the storm activity to wane overnight.
As for the weekend outlook, chances for showers and thunderstorms persist through Saturday. Sunday might offer a brief dry spell, with the cycle starting anew on Monday as a trough deepens near the Great Lakes. Despite the ebb and flow of rain and thunder, temperatures are anticipated to stay a few degrees above what's typical for this time of year—enough to let us slowly drift towards, but not quite reach, the heart of summer's steady heat.
For aviators, VFR CIGs are expected to persist through the forecast period, according to the National Weather Service. However, wildfire smoke is visibly aloft, and models suggest it could descend closer to the surface, potentially causing visibility issues. As always, they urge caution and point to the ever-present potential for impact from weather changes, particularly on Thursday with increased chances of thunderstorms.
No advisories or warnings are currently in place across Pennsylvania, Ohio, or West Virginia, keeping to the summer's churn of calm before the storm. Keep a lookout for updates and changes in the weather pattern, and enjoy the warmest peaks while they last.
