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San Juan Island, WA Weather Forecast and Current Conditions

Sunny 50°F
Feels Like 50°F  
Humidity 98% Dew Point 49°F Wind Calm 0 MPH Barometer 29.91 in.759.7 mm
Solar Rad 5 w/m2 UV Index 0
Report from 0.5 miles E of central San Juan Island at

Current Weather  

Sunny 50°F
Feels Like 50°F  
Humidity 98% Dew Point 49°F Wind Calm 0 MPH Barometer 29.91 in.759.7 mm
Solar Rad 5 w/m2 UV Index 0
Report from 0.5 miles E of central San Juan Island at

Forecast at a Glance

WedSep 17
Wed Sep 17: Sunny, High 75°F, Low 51°F
10%
75°
51°
ThuSep 18
Thu Sep 18: Sunny, High 70°F, Low 50°F
70°
50°
FriSep 19
Fri Sep 19: Sunny, High 72°F, Low 51°F
72°
51°
SatSep 20
Sat Sep 20: Rain, High 69°F, Low 52°F
80%
69°
52°
SunSep 21
Sun Sep 21: Rain Likely, High 71°F, Low 50°F
60%
71°
50°
MonSep 22
Mon Sep 22: Rain, High 70°F, Low 50°F
30%
70°
50°
TueSep 23
Tue Sep 23: Rain, High 69°F, Low 51°F
30%
69°
51°

This Date in Weather History

1987 - Thunderstorms produced large hail, damaging winds, and heavy rain in the northeastern U.S. Heavy rain in southwestern Pennsylvania forced evacuation of twenty homes along Four Mile Run Creek, near Darlington. Harrisburg PA established a record for the date with 2.11 inches of rain. A cold front in the central U.S. brought freezing temperatures to parts of Montana and Wyoming.

More on this and other weather history

San Juan Island 7 Day Weather Forecast Details

Wednesday Sep 17

Sunny

Day: Sunny. High near 75, with temperatures falling to around 69 in the afternoon. West southwest wind 3 to 7 mph.

Clear

Night: Mostly clear. Low around 51, with temperatures rising to around 53 overnight. West wind around 5 mph.

Thursday Sep 18

Sunny

Day: Sunny. High near 70, with temperatures falling to around 68 in the afternoon. Northwest wind 2 to 6 mph.

Clear

Night: Mostly clear, with a low around 50. West northwest wind 1 to 5 mph.

Friday Sep 19

Sunny

Day: Sunny, with a high near 72. Northwest wind around 2 mph.

Clear

Night: Mostly clear, with a low around 51.

Saturday Sep 20

Rain

Day: Rain after 11am. Partly sunny, with a high near 69.

Rain

Night: Rain. Mostly cloudy, with a low around 52.

Sunday Sep 21

Rain Likely

Day: Rain likely. Partly sunny, with a high near 71.

Rain

Night: A chance of rain. Partly cloudy, with a low around 50.

Monday Sep 22

Rain

Day: A chance of rain. Partly sunny, with a high near 70.

Rain

Night: A chance of rain. Mostly cloudy, with a low around 50.

Tuesday Sep 23

Rain

Day: A chance of rain. Partly sunny, with a high near 69.

Rain

Night: A chance of rain. Mostly cloudy, with a low around 51.

Sun & Moon   Monthly

First Light 6:22 AM

Sunrise 6:53 AM

Sunset 7:22 PM

Last Light 7:54 PM

Moonrise 1:50 AM

Moonset 6:04 PM

Moon Phase

Close Tide Stations

Friday Harbor, San Juan Island
(3.4 miles away)

Kanaka Bay, San Juan Island
(3.9 miles away)

Hanbury Point, Mosquito Pass, San Juan I.
(4.8 miles away)

Lakes Weather - Plan for a Beautiful Day
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Weather Near San Juan Island

Olga, WA

Similk Beach, WA

Upper Skagit Indian Reservat, WA

Snug Harbor, WA

Quilcene, WA

Contiguous United States Extremes

Tue's High Temperature
112 at 16 Miles Southwest Of Tecopa, CA

Wed's Low Temperature
22 at Peter Sinks, UT

Weather Folklore

Water rising in springs and wells indicates rain.

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