September is known as one of the best months to visit Pittsburgh! You can expect very pleasant temperatures during the day, with it cooling off a bit during the evening.
September: 52°F (11°C) / 75°F (24°C)
The recommended attire for opening ceremonies, the business meeting, awards luncheon and all other sessions is business casual.
For the Three Rivers Sightseeing Cruise, casual attire is recommended. We will be on the water. We suggest you bring layers. That way you can “put on” or “take off” layers as the weather requires. A waterproof or windproof jacket is recommended, as well as rubber-soled shoes.