SAN JUAN ISLAND, WA 98250 Weather Forecast & Current Conditions

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FRIDAY HARBOR, WA
Current Weather

7:53 AM PDT AUG 16, 2026
Broken Clouds
55°F
Feels Like: 54°F
Dewpoint: 52°F
Rel. Hum.: 90%
Visibility: 10 miles
Wind: SSW at 6 mph
Pressure: 30.22 inches
Last 72 hours

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SAN JUAN ISLAND, WA 98250
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the mid 60s to lower 70s. Light wind becoming south to 10 mph in the afternoon.
TONIGHT
Mostly clear. Patchy fog after midnight. Lows in the 50s. South wind to 10 mph becoming southeast after midnight.
MONDAY
Sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s. Light wind.
MONDAY NIGHT
Partly cloudy. Lows in the 50s. Light wind.
TUESDAY
Mostly sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s. Light wind.
TUESDAY NIGHT
Mostly clear. Lows in the lower to mid 50s.
WEDNESDAY
Mostly sunny. Highs near 70.
WEDNESDAY NIGHT
Partly cloudy. Patchy fog after midnight. Lows in the lower to mid 50s.
THURSDAY
Mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s.
THURSDAY NIGHT
Partly cloudy. Patchy fog after midnight. Lows in the lower to mid 50s.
FRIDAY
Mostly sunny. Patchy fog in the morning. Highs in the upper 60s to mid 70s.
FRIDAY NIGHT
Mostly cloudy with a chance of rain. Lows in the lower to mid 50s.
SATURDAY
Partly sunny with a slight chance of rain. 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 PM CDT  8/15/2026
Sunday
16 AUG 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 0 hours 11 PM 55° 55° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 90% 52°
Low 51° SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 3 hours 2 AM 53° 53° Mostly Cloudy   CALM 96% 52°
High 70° SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 6 hours 5 AM 52° 52° Mostly Cloudy 1%

0% Thunder
( 0% severe)
  CALM 100% 52°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 9 hours 8 AM 56° 56° Mostly Cloudy   CALM 93% 54°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 12 hours 11 AM 63° 64° Mostly Cloudy 1%

0% Thunder
( 0% severe)
S   5 75% 55°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 15 hours 2 PM 68° 68° Partly Cloudy SSW   6 65% 56°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 18 hours 5 PM 68° 68° Partly Cloudy 1%

0% Thunder
( 0% severe)
SW   6 68% 57°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 21 hours 8 PM 62° 63° Clear SSW   3 78% 55°
Monday
17 AUG 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 0 hours 11 PM 55° 55° Clear 1%

0% Thunder
( 0% severe)
  CALM 93% 53°
Low 51° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 3 hours 2 AM 53° 53° Partly Cloudy   CALM 100% 53°
High 73° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 6 hours 5 AM 52° 52° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 100% 52°

Partly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 9 hours 8 AM 56° 56° Partly Cloudy   CALM 96% 55°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 12 hours 11 AM 64° 66° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 75% 56°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 15 hours 2 PM 70° 70° Clear WSW   5 63% 57°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 18 hours 5 PM 70° 70° Partly Cloudy 0%

0% Thunder
( 0% severe)
SW   5 63% 57°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 21 hours 8 PM 63° 64° Partly Cloudy SSW   3 78% 56°

FRIDAY HARBOR, WA extended weather forecast

Tuesday
18 AUG 2026
Wednesday
19 AUG 2026
Thursday
20 AUG 2026
Friday
21 AUG 2026
Saturday
22 AUG 2026
Low 51° Low 53° Low 52° Low 53° Low 53°
High 72° High 73° High 78° High 73° High 71°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3 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
Partly Cloudy
3% Rain
Partly Cloudy
8% Rain
Partly Cloudy
7% Rain
Mostly Cloudy
22% Rain
Overcast
50% Rain
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