San Juan Islands Weather
Overnight
44°F
Mostly Cloudy
3 mph NNW
Thursday
56°F
Mostly Cloudy
5 to 9 mph NW
Thursday Night
43°F
Mostly Clear
5 to 12 mph WNW
Friday
54°F
Sunny
2 to 12 mph NNW
Friday Night
41°F
Partly Cloudy then Slight Chance Light Rain
3 mph E
Saturday
53°F
Chance Light Rain
2 to 6 mph ENE
Saturday Night
41°F
Light Rain Likely
6 mph NNE
Sunday
55°F
Chance Light Rain
5 to 9 mph NE
Sunday Night
43°F
Slight Chance Light Rain
0 to 8 mph NNE
Monday
55°F
Slight Chance Light Rain then Mostly Sunny
0 to 6 mph N
Monday Night
42°F
Partly Cloudy
0 to 5 mph N
Tuesday
55°F
Mostly Sunny
0 to 5 mph ENE
Tuesday Night
41°F
Mostly Cloudy
0 to 5 mph NE
Wednesday
54°F
Mostly Sunny
0 to 7 mph N
Marine weather for the San Juan Islands, Washington — San Juan Island, Friday Harbor, Roche Harbor, Orcas Island, Eastsound, Deer Harbor, Lopez Island, Shaw Island, Stuart Island, Sucia Island, Lummi Island, Rosario Strait, Haro Strait, and Boundary Pass. Wind, tides, and conditions for sailing, boating, kayaking, paddleboarding, fishing, whale watching, and scuba diving.