It's great news for late-season allergy sufferers and bad news for sensitive outdoor plants.
The first frost of the season is possible this evening, the National Weather Service reported.
A frost advisory is posted for Erie, Niagara, Orleans, Genesee and Chautauqua counties from midnight tonight through 8 a.m. Tuesday.
"Frost may damage sensitive outdoor plants if they are not protected or brought inside," the weather service said.
Temperatures are forecast to drop into the mid-30s.
That would be the coldest reading of the season. The lowest so far was 38 degrees Oct. 1.
"If you are in the advisory area you should take steps to protect tender vegetation," the weather service advised. "Also, potted plants normally left outdoors should be covered or brought inside away from the cold."