Originally Posted by Free Radical
The weather just north of Lake Superior can be unpredictable. You can be riding through 30C (86F) temps in the middle of summer and then suddenly experience pockets of 10C (50F) cold. But the temps warm up as you ride away from the big lake. On this trip - the daytimes highs ranged from between 25C-30C (77F-86F). The overnight lows can be noticeably cooler in Northern Ontario compared to Southern Ontario - so you need to prepare for that.