The Toronto weather forecast for tomorrow is marvelous and my bike club is doing a (free for guests) evening ride from High Park to Port Credit and back¹. But I probably won't be turning up for it, because ~40 km is pretty long for an evening ride for me (I'd likely get home ~10pm and still need to eat supper and etc), and also I've covered this stretch a lot.
But it should be a great ride if it sounds interesting to you. Go for it!