San Juan Islands Weather
This Afternoon
50°F
Light Rain
7 mph ENE
Tonight
39°F
Chance Light Rain then Mostly Cloudy
0 to 6 mph ESE
Saturday
51°F
Mostly Sunny
0 to 7 mph NE
Saturday Night
40°F
Mostly Cloudy
0 to 6 mph NNW
Sunday
50°F
Mostly Sunny
0 to 5 mph NE
Sunday Night
39°F
Partly Cloudy
0 mph
Monday
51°F
Mostly Cloudy
0 to 5 mph ENE
Monday Night
43°F
Cloudy
0 to 5 mph N
Tuesday
53°F
Mostly Cloudy
0 to 6 mph N
Tuesday Night
42°F
Mostly Cloudy
0 to 5 mph N
Wednesday
53°F
Partly Sunny then Slight Chance Light Rain
0 to 6 mph NE
Wednesday Night
43°F
Chance Light Rain
0 to 3 mph NNE
Thursday
54°F
Slight Chance Light Rain
0 to 6 mph SSE
Thursday Night
43°F
Chance Light Rain
0 to 5 mph SSE
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.