Portland Maine and Casco Bay Weather
Tonight
45°F
Mostly Clear
10 to 15 mph NE
Wednesday
53°F
Sunny
5 to 15 mph NE
Wednesday Night
43°F
Mostly Cloudy
5 to 10 mph NE
Thursday
59°F
Partly Sunny
10 to 20 mph N
Thursday Night
39°F
Mostly Clear
15 to 20 mph N
Friday
50°F
Sunny
10 to 15 mph N
Friday Night
36°F
Mostly Clear
5 to 10 mph N
Saturday
55°F
Sunny
5 mph W
Saturday Night
39°F
Clear
0 to 5 mph W
Sunday
58°F
Sunny
0 to 10 mph SW
Sunday Night
44°F
Mostly Clear
5 to 10 mph SW
Monday
61°F
Mostly Sunny
5 mph SW
Monday Night
45°F
Partly Cloudy
5 mph W
Tuesday
54°F
Mostly Sunny
5 to 10 mph NW
Marine weather for Portland, Casco Bay, Portland Harbor, South Portland, Cape Elizabeth, Portland Head Light, Falmouth, Falmouth Foreside, Cousins Island, Yarmouth, the Royal River, Freeport, South Freeport, the Harraseeket River, the New Meadows River, Harpswell, Orr's Island, Bailey Island, Peaks Island, Long Island, Great Diamond Island, Chebeague Island, Cliff Island, the Calendar Islands, Hussey Sound, Broad Sound, and the Fore River, Maine. Wind, tides, and conditions for sailing, boating, fishing, sea kayaking, paddleboarding, and windsurfing.