Isle Royale Forums

I've been looking at the weather forecasts. Plenty of rain, lows in 40s & 50s. When can you normally expect to see the first frost on I.R.?

I think the earliest I can recall while up there was the 2nd week in Sept.
I know we have gotten sleet/snow the end of September.

I'll be arriving one month from today, Sept 18th-25th. I'll be sure to tell you how the weather was upon my return! I am prepared for cooler weather...