Pittsburgh woke up under a thick blanket of wildfire smoke early Friday, July 17, with the morning sky turned murky and visibility cut to roughly 1–2 miles across much of the city. A nearby airport station clocked in at about 66°F, and forecasters say the haze will stick around even as temperatures climb toward a hot afternoon high near 91°F.
Air Quality And Safety
The Pennsylvania Department of Environmental Protection has issued a statewide Code Purple Air Quality Alert for Friday, July 17, calling current levels of fine particulate pollution “very unhealthy” and urging residents to skip outdoor exercise. Children, older adults, and anyone with lung or heart conditions are being advised to stay indoors.
According to the PA Department of Environmental Protection, the alert covers areas affected by smoke drifting in from wildfires to the north. For a deeper dive into how we got here, check out our earlier coverage Smoky Skies, Sweltering Heat Put Pittsburgh On Red Alert.
Afternoon Heat With Smoke
Through the afternoon, expect a hot, hazy setup with the sun fighting through a smoky filter. Highs near 91°F will make it tough to be comfortable outside even where particle counts dip a bit. The smoke is likely to keep visibility reduced in many neighborhoods, and river valleys could see pockets of thicker haze or even some fog early in the morning and again overnight.
Tonight Into Saturday: Storms Possible
Late Friday night into Saturday, the pattern shifts to a stormier look, with a chance of showers and thunderstorms that ramps up as a front pushes through. Some storms could turn strong and bring heavy downpours along with gusty winds. Forecasters say Saturday night could deliver the heaviest rainfall, with totals up to about a half‑inch to three‑quarters of an inch in spots and the risk of localized flash flooding where storms move slowly…