News Frost advisory in effect SHARE ON: Patrick Grapes, staff Saturday Sep. 22nd, 2018 Frost-covered branch. (Stock photo) Environment Canada says we could see some frost tonight. An advisory is in effect for Huntsville and Baysville. Temperatures are forecast to fall close to or below zero. The agency says frost can damage plants in areas that are frost-prone. Environment Canada says you should cover up plants, especially in those areas.