It will be a breezy and cool Sunday with the pressure difference between Sandy's low pressure off of the Atlantic Coast and the cool Canadian High helping keep the winds a little higher than they would have been (North 15-25 mph).
Tonight, winds will still be blowing 10-15 mph. That may keep the air stirred up enough that we may not see any freezing temperatures Monday morning.
However, I sill feel confident that once winds slack off enough to during the night later this week that many outlying areas may see their first freeze.
Nashville's official temperature may be marginal for that, but get away from the concrete island of the city and temps could very well touch 32° or below Monday, Tuesday, or Wednesday nights.