San Juan Islands Weather
Overnight
39°F
Patchy Fog
0 mph
Saturday
51°F
Patchy Fog then Mostly Sunny
0 to 7 mph NNE
Saturday Night
40°F
Partly Cloudy then Patchy Fog
0 to 6 mph NNW
Sunday
50°F
Patchy Fog then Mostly Sunny
0 to 3 mph NE
Sunday Night
39°F
Partly Cloudy
0 mph
Monday
51°F
Mostly Cloudy
0 to 3 mph ENE
Monday Night
42°F
Cloudy
0 to 3 mph N
Tuesday
53°F
Mostly Cloudy
0 to 6 mph N
Tuesday Night
42°F
Mostly Cloudy
0 to 5 mph NNW
Wednesday
54°F
Chance Light Rain
0 to 8 mph SE
Wednesday Night
43°F
Chance Light Rain
0 to 3 mph SSE
Thursday
54°F
Slight Chance Light Rain
0 to 7 mph SSE
Thursday Night
43°F
Chance Light Rain
0 to 6 mph SSE
Friday
55°F
Chance Light Rain
6 to 12 mph S
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.