According to July 21 NY Times article:

Wildfire smoke from Canada and the Western United States stretched across the
continent this week, covering skies in a thick haze and triggering health
alerts from Toronto to Philadelphia. Air quality remained in the unhealthy
range across much of the East Coast on Wednesday morning as the haze pushed
southward….
… As the smoke moved eastward across Toronto, New York and Philadelphia on
Tuesday, concentrations of dangerous microscopic air pollution known as PM2.5
(because the particles are less than 2.5 microns in diameter) reached highs in
the unhealthy range for most of the day….

The Roosevelt Island sky looked like this from the wildfire smoke yesterday.

And rest of New York City.

UDPATE 7/22 – Roosevelt Island resident Tanya Morrisett adds yesterday:

Our bridge, Big Allis, and the sun (With a little smoke from the west)