Frost will creep across northern Maine early Friday morning, threatening gardens, crops, and morning commutes from 2 a.m. until 8 a.m. Residents should cover sensitive plants and allow extra time if traveling before sunrise.
According to the National Weather Service in Caribou, overnight lows will dip near 40 degrees under clear skies and calm winds. Patchy fog may also develop in valleys, further reducing visibility during the morning hours. Drivers along U.S. Route 1 and Route 161 should use caution, as frost can create slick spots on bridges and shaded roadways.
Friday turns sunny with highs near 67 and northwesterly gusts up to 20 mph, helping to warm conditions by midday. Another cool night follows with patchy fog after midnight. Saturday starts partly sunny with a high near 69 before rain chances increase by evening.
Showers move into the region Saturday night and continue into Sunday, with up to a 30% chance of rain during the day. Wet conditions may slow traffic on rural highways and secondary roads, especially during morning hours. Monday clears with mostly sunny skies, and highs rebound into the lower 70s by Tuesday and Wednesday, marking a return to more typical early fall weather.
Residents are urged to protect outdoor plants tonight and remain alert for frost hazards through early Friday.
Five-Day Forecast for Caribou, Maine:
- Friday: Sunny, high near 67.
- Saturday: Partly sunny, high near 69. Showers possible at night.
- Sunday: Chance of showers, high near 67.
- Monday: Mostly sunny, high near 70.
- Tuesday: Sunny, high near 74.
