Posted in Web 10-Day Weather – Portland, Maine, United States September 10, 2025 Be prepared with the most accurate 10-day forecast for Portland, Maine, United States with highs, lows, chance of precipitation from The Weather Channel and Weather.com https://weather.com/en-TV/weather/tenday/l/Portland+Maine+United+States?canonicalCityId=e2fb61574a3521b5801d7597320eafea