SAN JUAN ISLAND, WA 98250 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


FRIDAY HARBOR, WA
Current Weather

9:53 AM PDT AUG 30, 2026
Overcast
NA
Feels Like: NA
Dewpoint: NA
Rel. Hum.: NA%
Visibility: 10 miles
Wind: S at 8 mph
Pressure:
Last 72 hours

Local Area Snow Depth

Washington Current Weather

Washington MOS Forecast Weather


Regional Weather Maps


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2026 Hurricanes

SAN JUAN ISLAND, WA 98250
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly cloudy. A slight chance of showers late in the morning. Highs in the 60s. South wind 10 to 15 mph.
TONIGHT
Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s to mid 50s. South wind to 10 mph in the evening becoming light.
MONDAY
Partly sunny. Highs in the mid 60s to lower 70s. Light wind becoming northwest around 10 mph in the afternoon.
MONDAY NIGHT
Partly cloudy. Lows in the 50s. Light wind.
TUESDAY
Partly sunny. Highs in the mid 60s to lower 70s. South wind to 10 mph increasing to 10 to 15 mph in the afternoon.
TUESDAY NIGHT
Mostly cloudy with a chance of rain. Lows in the lower to mid 50s.
WEDNESDAY
Breezy. Mostly cloudy with a chance of rain. Highs in the mid to upper 60s.
WEDNESDAY NIGHT
Breezy. Mostly cloudy with a chance of rain. Lows near 50.
THURSDAY
Mostly cloudy. A chance of rain in the morning, then a slight chance of thunderstorms in the afternoon. Highs in the mid to upper 60s.
THURSDAY NIGHT
Mostly cloudy with a slight chance of rain. Lows near 50.
FRIDAY
Partly sunny with a slight chance of rain. Highs in the mid to upper 60s.
FRIDAY NIGHT
Partly cloudy. A slight chance of showers after midnight. Lows near 50.
SATURDAY
Mostly sunny. Highs in the mid to upper 60s.

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  8/30/2026
Sunday
30 AUG 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 12 hours 11 AM 59° 57° Mostly Cloudy 7%

0% Thunder
( 1% severe)
S   10 78% 52°
High 66° SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 15 hours 2 PM 64° 63° Mostly Cloudy S   10 65% 52°
Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 18 hours 5 PM 65° 65° Mostly Cloudy 4%

0% Thunder
( 0% severe)
S   7 58% 50°
SAN JUAN ISLAND, WA 98250 weather forecast Day 1, 21 hours 8 PM 58° 59° Mostly Cloudy   CALM 75% 50°
Monday
31 AUG 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 0 hours 11 PM 53° 53° Partly Cloudy 4%

0% Thunder
( 0% severe)
  CALM 90% 50°
Low 50° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 3 hours 2 AM 51° 51° Partly Cloudy   CALM 96% 50°
High 70° SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 6 hours 5 AM 50° 50° Mostly Cloudy 3%

0% Thunder
( 0% severe)
  CALM 100% 50°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 9 hours 8 AM 55° 55° Mostly Cloudy   CALM 90% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 12 hours 11 AM 63° 63° Mostly Cloudy 4%

0% Thunder
( 0% severe)
NNW   7 70% 53°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 15 hours 2 PM 68° 68° Partly Cloudy NNW   8 59% 53°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 18 hours 5 PM 69° 69° Partly Cloudy 0%

0% Thunder
( 0% severe)
NNW   7 55% 52°
SAN JUAN ISLAND, WA 98250 weather forecast Day 2, 21 hours 8 PM 61° 62° Partly Cloudy   CALM 72% 52°
Tuesday
1 SEP 2026
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 0 hours 11 PM 55° 55° Mostly Cloudy 2%

0% Thunder
( 0% severe)
  CALM 90% 52°
Low 51° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 3 hours 2 AM 53° 53° Partly Cloudy   CALM 93% 51°
High 71° SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 6 hours 5 AM 52° 52° Mostly Cloudy 4%

0% Thunder
( 0% severe)
  CALM 96% 51°

Mostly Cloudy



SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 9 hours 8 AM 55° 54° Mostly Cloudy S   6 96% 54°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 15 hours 11 AM 62° 61° Mostly Cloudy 5%

0% Thunder
( 0% severe)
S   10 75% 54°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 18 hours 2 PM 67° 67° Partly Cloudy S   12 63% 54°
SAN JUAN ISLAND, WA 98250 weather forecast Day 3, 21 hours 5 PM 69° 69° Mostly Cloudy     SSW   10 57% 53°

FRIDAY HARBOR, WA extended weather forecast

Wednesday
2 SEP 2026
Thursday
3 SEP 2026
Friday
4 SEP 2026
Saturday
5 SEP 2026
Sunday
6 SEP 2026
Low 55° Low 53° Low 51° Low 50° Low 51°
High 69° High 69° High 66° High 69° High 70°
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
Overcast
49% Rain
Overcast
69% Rain
Overcast
62% Rain
Overcast
38% Rain
Partly Cloudy
27% Rain
WEATHER SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
San Juan Island, WA
San Juan Island, WA snow
San Juan Island, WA radar
WA map
-or-
-or-
-or-
 
98250
98250 snow
98250 radar
 
-or-
-or-
 
 
WA
WA snow
 
 
Copyright © 2026 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions