Frost Advisory in Penobscot County, Maine
Issued by the National Weather Service and archived by Claims Pages
5/21/2026 1:08:00 PM (UTC)
Urgency: Expected
Severity: Minor
Certainty: Likely
5/21/2026 1:08:00 PM until 5/22/2026 4:15:00 AM
* WHAT...Temperatures as low as 30 will result in frost formation.
* WHERE...Central Piscataquis, Northern Penobscot, Southeast
Aroostook, and Northeast Aroostook Counties.
* WHEN...From midnight tonight to 7 AM EDT Friday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
