CARIBOU, ME – A sharp fall chill is sweeping through northern Maine this weekend, with widespread frost expected early Saturday morning, signaling the arrival of colder temperatures before the Columbus Day holiday. While bright sunshine will follow, this chilly start serves as a reminder that winter is not far behind.
Frost Advisory and Weekend Weather
According to the National Weather Service (NWS) in Caribou, Aroostook County will experience widespread frost from 7 to 8 a.m. Saturday, as temperatures dip into the 30s. By the afternoon, temperatures are expected to rebound into the low 60s, offering a brief respite before the next round of frost arrives.
With calm winds and clear skies, conditions will be ideal for radiational cooling, meaning that frost is likely again on Sunday morning and early Monday, which may affect drivers along U.S. Route 1 and Maine Route 89, where slick rural roads and reduced visibility are expected.
Columbus Day Outlook
On Columbus Day, frost is expected again before dawn, but the day will warm up to a sunny, mild afternoon with temperatures near 60°F. The NWS advises residents and travelers to dress in layers and protect sensitive plants as repeated frosts could damage late-season gardens.
Homeowners are also reminded to check heating systems and insulate exposed pipes to prepare for the colder air returning midweek.
Midweek Weather and Seasonal Transition
Clouds will start to increase on Monday night, transitioning into Tuesday with only a slight chance of showers by midweek. Conditions are expected to remain cool through Friday, as Maine continues its transition deeper into fall, providing ideal weather for leaf-peeping trips and visits to pumpkin patches across the northern counties.
Five-Day Forecast for Caribou, ME:
- Saturday: Mostly sunny, high 63°F/low 32°F – Widespread frost early.
- Sunday: Sunny, high 60°F/low 30°F – Patchy frost at dawn.
- Monday (Columbus Day): Mostly sunny, high 60°F/low 34°F – Early frost.
- Tuesday: Mostly cloudy, high 60°F/low 41°F – Light breeze late.
- Wednesday: Mostly cloudy, high 55°F/low 43°F – Slight chance of showers.
Call to Action
Are you ready for the first frost of the season? Let us know how you’re preparing for the cooler weather in the comments below and share your fall weather tips with the community.
