Portland Maine and Casco Bay Weather
Overnight
36°F
Mostly Clear
5 mph N
Wednesday
51°F
Mostly Sunny
0 to 5 mph E
Wednesday Night
40°F
Mostly Clear
5 to 10 mph SW
Thursday
62°F
Sunny
10 to 15 mph SW
Thursday Night
54°F
Partly Cloudy
10 to 15 mph SW
Friday
63°F
Sunny
10 to 15 mph W
Friday Night
42°F
Mostly Clear
10 mph NW
Saturday
52°F
Sunny
5 to 10 mph NW
Saturday Night
37°F
Mostly Clear
0 to 5 mph NW
Sunday
56°F
Sunny
5 mph SW
Sunday Night
43°F
Partly Cloudy
5 mph W
Monday
59°F
Mostly Sunny then Slight Chance Rain Showers
5 mph SW
Monday Night
44°F
Slight Chance Rain Showers
5 to 10 mph NW
Tuesday
54°F
Slight Chance Rain Showers
10 mph NE
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.