Maine’s quiet late morning skies over Caribou are giving way to a much wetter pattern as gray clouds push north across Aroostook County. Dry pavement and mild spring air won’t last long. Rain moves back into northern Maine through the afternoon and becomes widespread by Memorial Day morning.
According to the National Weather Service, Caribou faces a 100% chance of rain Monday with periods of steady rainfall and southeast wind gusts reaching 22 mph. Drivers along Route 1 and nearby rural highways could encounter ponding water, reduced visibility, and patchy fog during heavier downpours. Rainfall totals between a quarter and half inch remain possible by late Monday.
Temperatures also swing sharply this week. Highs stay near 58 degrees Monday before rebounding into the upper 70s Tuesday as warmer air briefly surges northward. That quick jump may fuel additional showers and isolated thunderstorms Tuesday night into Wednesday. While severe weather appears limited, a few storms could still produce gusty winds and bursts of heavy rain.
The broader weather setup across the Northeast remains active as moisture rides along a slow-moving frontal boundary stretching from the Mid-Atlantic into New England. Eastern Canada’s cooler air continues to hold temperatures below seasonal averages at times, especially during rainy periods.
By midweek, conditions stay unsettled with repeated rounds of showers likely Wednesday. Roads may remain slick during the morning commute, especially in low-lying valleys where fog redevelops before sunrise.
Longer-range trends hint at warmer late-spring air building into northern Maine later next week with more seasonal temperatures returning after this stretch of damp weather.
Five Day Forecast for Caribou, Maine:
- Monday: Rain and gusty winds, high near 58°F
- Tuesday: Mostly sunny and warmer, high near 77°F
- Wednesday: Showers likely with isolated thunderstorms, high near 72°F
- Thursday: Slight chance of showers, high near 60°F
- Friday: Mostly sunny with cooler air returning, high near 57°F





