CARIBOU, Maine – The chill of fall is settling in across northern Maine as residents brace for frost before rain returns early next week. The National Weather Service in Caribou warns of patchy frost developing Friday night and again Saturday morning, with lows dipping into the low 30s. Sensitive vegetation should be covered or brought indoors to prevent damage.
Those driving along Route 1 or Route 89 early Saturday may notice areas of fog and frost, especially in low-lying valleys. Sunshine will return later in the day, helping temperatures rise to the upper 50s — a brief break before clouds increase Sunday.
By Sunday night, conditions begin to change. Moist air from the south moves in, bringing a chance of rain that increases into Monday and Tuesday. Winds will strengthen slightly, gusting near 25 mph at times. Rain will likely continue through midweek, keeping temperatures mild but skies gray.
Next week’s pattern marks a clear transition deeper into fall, with colder mornings and wetter afternoons ahead. While no major storms are expected, travel could be slick during morning commutes, especially for those heading south toward Bangor.
Expect the weekend to deliver a mix of autumn beauty and early reminders of winter — frost in the morning, rain in the days ahead, and crisp air that’s here to stay.
Five-Day Outlook for Caribou, ME:
Fri: 55/31 – Partly sunny; frost late.
Sat: 58/35 – Patchy frost early; sunny.
Sun: 62/44 – Mostly sunny; clouds increase late.
Mon: 62/46 – Rain likely; breezy.
Tue: 59/46 – Rain continues; cool and damp.
