Portland Maine and Casco Bay Weather
Overnight
41°F
Clear
15 mph N
Friday
53°F
Sunny
10 to 15 mph N
Friday Night
36°F
Clear
5 to 10 mph N
Saturday
55°F
Sunny
5 mph NW
Saturday Night
37°F
Clear
0 to 5 mph W
Sunday
56°F
Sunny
0 to 5 mph SW
Sunday Night
41°F
Mostly Clear
5 mph SW
Monday
61°F
Sunny
0 to 5 mph SW
Monday Night
42°F
Mostly Clear
0 to 10 mph NW
Tuesday
51°F
Sunny
5 to 10 mph N
Tuesday Night
35°F
Mostly Clear
5 mph N
Wednesday
49°F
Sunny
5 mph NE
Wednesday Night
39°F
Partly Cloudy
5 mph SW
Thursday
54°F
Mostly Sunny
5 to 10 mph SW
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.