Parts of the Southern Tier could see their first frost of the season Monday morning and again early Tuesday.
The National Weather Service office in Buffalo issued a frost advisory from 1 to 9 a.m. Monday for the valleys of Allegany and Cattaraugus counties that are typically colder. Forecasters said potted plants and other tender vegetation should be protected.
Overnight temperatures in the low to mid 30s are expected in the Southern Tier. Across the rest of the region, readings should bottom out in the upper 30s and low 40s. Daytime highs Monday are likely to reach only into the mid 50s despite sunny skies.
It’s due to be even chillier Monday night and Tuesday morning. A freeze watch has been posted for Allegany and Cattaraugus counties from 1 to 9 a.m. Tuesday, when a killing frost could occur. Elsewhere, there’s a good chance of patchy frost in interior areas, while temperatures should stay in the mid to upper 30s closer to the lakes.