FWIW:John, I don't know how to check out the lake water temp(shallow/surface). Is it running warmer than the norm, or is there a normal winter temp???
FWIW:
- (click →) National Data Buoy Center, then:
- From the links on the right side of the page, click on • USA-Lake Superior (or whichever), then …
- click on the desired buoy symbol.