Caribou, Maine – Northern Maine residents will wake up to a sharp taste of fall Wednesday, with widespread frost expected as October begins. Drivers and farmers alike should prepare early, as cold morning temperatures may impact road safety and damage sensitive crops.
According to the National Weather Service in Caribou, frost is likely before sunrise Wednesday, with lows near 32 degrees in northern Aroostook County. The agency warns that tender vegetation and gardens could suffer if left uncovered, while patchy frost may also affect visibility on rural highways such as U.S. Route 1.
By midweek, a shift from sunny and mild conditions to crisp and colder mornings will define the region. Tuesday brings a chance of light showers, followed by highs only in the mid-50s on Wednesday under mostly sunny skies. Winds from the north at 5 to 10 mph will reinforce the chill.
Thursday morning could bring another frost, especially in low-lying areas before skies clear and highs rebound near 60. The end of the week turns warmer, with sunshine returning Friday and Saturday, pushing daytime highs back into the 70s by the weekend.
Residents should take precautions now by covering plants, securing outdoor water lines, and allowing extra travel time early Wednesday. Conditions remain favorable for clear skies and cold nights until late week, with additional advisories possible if frost lingers.
Five-Day Forecast for Caribou, Maine
- Monday: Sunny, high 73.
- Tuesday: Chance of showers early, then mostly sunny. High 59.
- Wednesday: Widespread frost early. Mostly sunny, high 55. Low 32.
- Thursday: Frost before sunrise, then sunny. High 60. Low 37.
- Friday: Sunny and warmer. High 69, low 44.
