Local astronomy buff Felton Davis passed along the following...
The forecast for tomorrow is partly cloudy, so we will just have to watch the skies for an opportunity to witness the transit of Mercury across the face of the Sun. Mercury will begin crossing at 7:13 in the morning, reach the mid-point at 10:57 am, and conclude at 2:42 in the afternoon.
I hope to show it for a couple of hours in the morning, take a lunch break, and then resume showing at 1 pm. My usual location at Second Avenue and East Third Street, or down at First Street by the F Train stop if the buildings are getting in the way of the sun. And yes, a very thick filter will be in place to reduce the bright light of the sun — that is the only safe way to view this unique event.
Here's more via an article in The Miami Herald.