The chilly temperatures are here, but the rain is gone for Saturday. Highs will only be in the mid to upper 50s with a north wind 10-20 mph.
Tonight, an upper level disturbance will bring a shower chance back into the picture and there could still be a lingering shower early Sunday morning before ending.
Lows on Sunday morning should be in the low to mid 40s with Sunday's highs in the upper 50s.
The question for frost on Sunday night (Monday morning) is concerning cloud cover.
Another upper level disturbance will move across Middle TN Sunday overnight. The cloud cover may be confined to south Middle TN negating frost there, but if the cloud cover extends farther north it could prohibit frost in Nashville and north Middle TN, as well. Temperatures could drop to the mid to upper 30s.
Anywhere skies are clear, frost will be likely, so if you don't want to take a chance, cover any late season flowers or vegetables.
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