SAN JUAN ISLAND, WA 98250 Weather Forecast & Current Conditions

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FRIDAY HARBOR, WA
Current Weather

1:53 PM PDT SEP 13, 2026
Clear
59°F
Feels Like: 58°F
Dewpoint: 52°F
Rel. Hum.: 78%
Visibility: 10 miles
Wind: SE at 8 mph
Pressure: 29.92 inches
Last 72 hours

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SAN JUAN ISLAND, WA 98250
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TODAY
Partly sunny in the late morning and early afternoon then becoming sunny. Highs in the 60s. Southwest wind to 10 mph increasing to south 10 to 20 mph in the afternoon.
TONIGHT
Mostly clear. Lows in the upper 40s to mid 50s. South wind 10 to 20 mph becoming southwest 10 to 15 mph after midnight.
MONDAY
Mostly cloudy in the morning then becoming mostly sunny. Highs in the 60s. South wind around 10 mph.
MONDAY NIGHT
Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 40s to mid 50s. South wind to 10 mph in the evening becoming light.
TUESDAY
Partly sunny in the morning then becoming sunny. Highs in the 60s. Light wind becoming northwest to 10 mph in the afternoon.
TUESDAY NIGHT
Clear. Lows near 50.
WEDNESDAY
Sunny. Patchy fog in the morning. Highs in the mid to upper 60s.
WEDNESDAY NIGHT
Mostly clear. Lows near 50.
THURSDAY
Sunny. Highs near 70.
THURSDAY NIGHT
Mostly clear. Lows in the lower to mid 50s.
FRIDAY
Sunny. Highs near 70.
FRIDAY NIGHT
Mostly clear. Lows in the lower to mid 50s.
SATURDAY
Mostly sunny. Highs near 70.

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  9/13/2026
Sunday
13 SEP 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 12 hours 11 AM 63° 63° Mostly Cloudy 2%

0% Thunder
( 2% severe)
SW   7 70% 53°
High 68° SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 15 hours 2 PM 67° 67° Partly Cloudy S   12 61% 53°
Partly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 18 hours 5 PM 66° 66° Partly Cloudy 1%

0% Thunder
( 0% severe)
S   13 61% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 21 hours 8 PM 59° 57° Partly Cloudy SSW   9 75% 51°
Monday
14 SEP 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 0 hours 11 PM 54° 52° Partly Cloudy 2%

0% Thunder
( 1% severe)
SW   7 86% 50°
Low 50° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 3 hours 2 AM 52° 50° Partly Cloudy SW   6 93% 50°
High 66° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 6 hours 5 AM 52° 51° Mostly Cloudy 4%

0% Thunder
( 1% severe)
SSW   5 93% 50°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 9 hours 8 AM 54° 53° Mostly Cloudy S   6 93% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 12 hours 11 AM 61° 60° Mostly Cloudy 3%

0% Thunder
( 1% severe)
S   8 72% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 15 hours 2 PM 66° 66° Mostly Cloudy S   8 58% 51°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 18 hours 5 PM 65° 65° Partly Cloudy 0%

0% Thunder
( 0% severe)
S   8 58% 50°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 21 hours 8 PM 59° 58° Mostly Cloudy SSW   6 72% 50°
Tuesday
15 SEP 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 0 hours 11 PM 54° 54° Partly Cloudy 4%

0% Thunder
( 1% severe)
  CALM 83% 49°
Low 50° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 3 hours 2 AM 52° 52° Mostly Cloudy   CALM 89% 49°
High 67° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 6 hours 5 AM 51° 51° Mostly Cloudy 15%
RAIN
<.01 in
0% Thunder
( 2% severe)
  CALM 93% 49°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 9 hours 8 AM 53° 53° Mostly Cloudy   CALM 96% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 15 hours 11 AM 61° 60° Partly Cloudy 1%

0% Thunder
( 2% severe)
NNW   7 75% 53°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 18 hours 2 PM 66° 66° Partly Cloudy NNW   8 61% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 21 hours 5 PM 66° 66° Clear     NNW   5 58% 51°

FRIDAY HARBOR, WA extended weather forecast

Wednesday
16 SEP 2026
Thursday
17 SEP 2026
Friday
18 SEP 2026
Saturday
19 SEP 2026
Sunday
20 SEP 2026
Low 48° Low 49° Low 47° Low 49° Low 51°
High 70° High 71° High 71° High 67° High 63°
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
Clear
5% Rain
Clear
7% Rain
Clear
7% Rain
Partly Cloudy
12% Rain
Mostly Cloudy
31% Rain
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