SAN JUAN ISLAND, WA 98250 Weather Forecast & Current Conditions

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FRIDAY HARBOR, WA
Current Weather

6:53 PM PDT APR 16, 2026
Clear
48°F
Feels Like: 44°F
Dewpoint: 37°F
Rel. Hum.: 65%
Visibility: 10 miles
Wind: S at 8 mph
Pressure: 30.27 inches
Last 72 hours

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SAN JUAN ISLAND, WA 98250
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy until early morning then becoming mostly cloudy. Lows in the upper 30s to mid 40s. Southwest wind 10 to 15 mph becoming west after midnight. Gusts to 25 mph.
FRIDAY
Partly sunny in the morning then becoming sunny. Highs in the lower to mid 50s. Light wind.
FRIDAY NIGHT
Mostly cloudy. Lows in the lower to mid 40s. Light wind.
SATURDAY
Mostly cloudy. Highs in the mid 50s to lower 60s. Light wind.
SATURDAY NIGHT
Mostly cloudy. A slight chance of rain after midnight. Lows in the mid 40s to lower 50s. Light wind.
SUNDAY
Mostly cloudy. A slight chance of rain in the morning. Highs in the lower 60s.
SUNDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s.
MONDAY
Mostly sunny. Highs in the lower 60s.
MONDAY NIGHT
Partly cloudy. Lows in the upper 40s.
TUESDAY
Partly sunny with a slight chance of rain. Highs near 60.
TUESDAY NIGHT
Mostly cloudy with a slight chance of rain. Lows in the mid to upper 40s.
WEDNESDAY
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s.
WEDNESDAY NIGHT
Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower to mid 40s.

Visible Weather Satellite
SAN JUAN ISLAND, WA 98250
Infrared Weather Satellite
SAN JUAN ISLAND, WA 98250
NEXRAD Weather Radar
SAN JUAN ISLAND, WA 98250

FRIDAY HARBOR, WA 3 hourly weather forecast

weather forecast created  7:00 AM CDT  4/16/2026
Thursday
16 APR 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 12 hours 11 AM 48° 47° Clear 0%

0% Thunder
( 1% severe)
W   3 60% 35°
High 53° SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 15 hours 2 PM 51° 49° Clear S   6 54% 35°
Partly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 18 hours 5 PM 52° 50° Partly Cloudy 1%

0% Thunder
( 0% severe)
SSW   6 52% 35°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 21 hours 8 PM 47° 44° Partly Cloudy WSW   7 65% 36°
Friday
17 APR 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 0 hours 11 PM 43° 38° Partly Cloudy 1%

0% Thunder
( 0% severe)
WSW   8 79% 37°
Low 40° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 3 hours 2 AM 42° 38° Mostly Cloudy WSW   6 82% 37°
High 54° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 6 hours 5 AM 42° 40° Mostly Cloudy 3%

0% Thunder
( 1% severe)
WSW   3 86% 38°

Partly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 9 hours 8 AM 44° 43° Partly Cloudy SW   1 82% 39°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 12 hours 11 AM 49° 48° Partly Cloudy 0%

0% Thunder
( 1% severe)
S   3 68% 39°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 15 hours 2 PM 52° 52° Partly Cloudy SSE   2 59% 38°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 18 hours 5 PM 53° 53° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNW   1 54% 37°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 21 hours 8 PM 48° 47° Mostly Cloudy   CALM 68% 38°
Saturday
18 APR 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 0 hours 11 PM 44° 43° Mostly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 79% 38°
Low 41° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 3 hours 2 AM 43° 42° Mostly Cloudy   CALM 86% 39°
High 59° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 6 hours 5 AM 43° 42° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 89% 40°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 9 hours 8 AM 46° 45° Mostly Cloudy ENE   1 86% 42°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 15 hours 11 AM 53° 53° Mostly Cloudy 2%

0% Thunder
( 0% severe)
ENE   2 66% 42°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 18 hours 2 PM 56° 55° Mostly Cloudy NNE   5 59% 42°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 21 hours 5 PM 58° 58° Mostly Cloudy     N   5 53% 41°

FRIDAY HARBOR, WA extended weather forecast

Sunday
19 APR 2026
Monday
20 APR 2026
Tuesday
21 APR 2026
Wednesday
22 APR 2026
Thursday
23 APR 2026
Low 43° Low 44° Low 44° Low 45° Low 41°
High 67° High 68° High 66° High 63° High 56°
SAN JUAN ISLAND, WA 98250 weather forecast Day 4 SAN JUAN ISLAND, WA 98250 weather forecast Day 5 SAN JUAN ISLAND, WA 98250 weather forecast Day 6 SAN JUAN ISLAND, WA 98250 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
12% Rain
Partly Cloudy
15% Rain
Partly Cloudy
14% Rain
Mostly Cloudy
33% Rain
Mostly Cloudy
50% Rain
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