Weather
Northern Maine Weather Oct. 17–21: Snow, Then Lows Near 23°
NORTHERN MAINE — Snow showers could linger into Saturday morning across the Caribou area as a cold weekend brings overnight temperatures down to the lower 20s, followed by a substantial warming trend
By Mara Ellison · 2026-10-14T09:18:37.320Z
NORTHERN MAINE — Snow showers could linger into Saturday morning across the Caribou area as a cold weekend brings overnight temperatures down to the lower 20s, followed by a substantial warming trend early next week.
According to the National Weather Service in Caribou, Aroostook County could see a chance of snow Saturday morning, Oct. 17, before conditions gradually improve. Temperatures in Caribou are expected to reach only 37 degrees Saturday afternoon before falling to around 23 degrees overnight.
The wintry conditions follow a developing weather system expected to bring rain, potentially mixed with snow, Friday afternoon and Friday night.
The National Weather Service places the probability of precipitation at 90% Friday and Friday night, although that percentage represents the chance of precipitation rather than the likelihood of accumulating snow.
Snow Showers Possible Saturday Morning The transition begins Friday, when rain could mix with snow during the afternoon as temperatures hover near 38 degrees.
Friday night, precipitation may continue as a rain snow mixture before 5 a.m., followed by a chance of rain.
Southeast winds of 10 to 18 mph are expected to become northwest winds overnight, with gusts reaching 32 mph.
By Saturday, lingering snow is possible before 8 a.m., followed by a chance of snow showers later in the day.
The National Weather Service assigns a 30% precipitation probability Saturday, with mostly cloudy skies and breezy conditions expected.
No specific snowfall accumulation is provided in the supplied forecast, leaving uncertainty about whether snow will accumulate in Caribou.
The coldest temperatures arrive Saturday night and Sunday night, when lows are expected to reach approximately 23 degrees.
Sunshine Returns as Temperatures Climb The colder conditions should begin easing Sunday, when sunshine returns and temperatures reach around 41 degrees.
Monday brings a more noticeable improvement, with partly sunny skies and afternoon temperatures climbing to approximately 51 degrees.
By Tuesday, highs are expected to reach 56 degrees, nearly 20 degrees warmer than Saturday.
The recovery offers a significant contrast to the wintry start of the weekend, although overnight temperatures will remain chilly.
While the supplied forecast establishes snow chances and temperature changes for Caribou, conditions elsewhere across northern Maine may differ, particularly in higher elevations.
Five Day Weather Outlook: Oct. 17–21 Temperatures below represent National Weather Service forecasts for Caribou in Aroostook County, northern Maine.
Saturday, Oct. 17: Chance of snow before 8 a.m., followed by possible snow showers. Mostly cloudy and breezy, with a high near 37°. Precipitation chance 30%. Partly cloudy overnight, with a low around 23°. Sunday, Oct. 18: Sunny but chilly, with a high near 41°. Partly cloudy overnight, with temperatures falling to around 23°. Monday, Oct. 19: Partly sunny and warmer, with afternoon temperatures reaching approximately 51°. Mostly cloudy overnight, with a low near 33°. Tuesday, Oct. 20: Partly sunny and milder, with a high near 56°. Overnight temperatures were not available in the supplied forecast.