We only cancel bus tours if it is dangerous to drive, which, in Memphis, is very rare.  We occasionally cancel walking tours when there is a serious rain event (but not for light rain).   We do our best to contact our walking tour customers when there is a high chance of a downpour that could cause the tour to be cancelled. However, we aren't always able to reach all of our customers, so please call us at (901) 527-9415 if you’re concerned about inclement weather for a tour you've booked.