San Juan Island 5 Day Forecast
74°F
High55°F
Low5mph calm
WindDay: 0% | Night: 0%
Precipitation6:39 am
Sunrise7:40 pm
SunsetDay
Widespread haze before 11am. Sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Night
Partly cloudy, with a low around 55. South wind around 5 mph becoming calm in the evening.
Mon Sep 9
Partly Sunny
![San Juan Island weather - Mon Sep 9 - Partly Sunny](https://www.localconditions.com/images/fcicons/mcloudy.png)
- High 71°F
- Low 53°F
- Wind mild SW
- Precipitation
Day: 0%
Night: 0% - Sunrise
6:40 am - Sunset
7:38 pm
Summary
- Day
Partly sunny, with a high near 71. Light south southwest wind.
Day
Partly sunny, with a high near 71. Light south southwest wind.
Partly sunny, with a high near 71. Light south southwest wind.
- Night
Partly cloudy, with a low around 53. Calm wind.
Night
Partly cloudy, with a low around 53. Calm wind.
Partly cloudy, with a low around 53. Calm wind.
Tue Sep 10
Partly Sunny
![San Juan Island weather - Tue Sep 10 - Partly Sunny](https://www.localconditions.com/images/fcicons/mcloudy.png)
- High 69°F
- Low 52°F
- Wind mild
- Precipitation
Day: 0%
Night: 40% - Sunrise
6:42 am - Sunset
7:36 pm
Summary
- Day
Partly sunny, with a high near 69.
Day
Partly sunny, with a high near 69.
Partly sunny, with a high near 69.
- Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Wed Sep 11
Chance Of Showers
![San Juan Island weather - Wed Sep 11 - Chance Of Showers](https://www.localconditions.com/images/fcicons/showers.png)
- High 68°F
- Low 51°F
- Wind mild
- Precipitation
Day: 10%
Night: 10% - Sunrise
6:43 am - Sunset
7:34 pm
Summary
- Day
A chance of showers. Partly sunny, with a high near 68.
Day
A chance of showers. Partly sunny, with a high near 68.
A chance of showers. Partly sunny, with a high near 68.
- Night
A slight chance of showers. Partly cloudy, with a low around 51.
Night
A slight chance of showers. Partly cloudy, with a low around 51.
A slight chance of showers. Partly cloudy, with a low around 51.
Thu Sep 12
Chance Of Showers
![San Juan Island weather - Thu Sep 12 - Chance Of Showers](https://www.localconditions.com/images/fcicons/showers.png)
- High 69°F
- Low 52°F
- Wind mild
- Precipitation
Day: 10%
Night: 10% - Sunrise
6:45 am - Sunset
7:32 pm
Summary
- Day
A slight chance of showers. Mostly sunny, with a high near 69.
Day
A slight chance of showers. Mostly sunny, with a high near 69.
A slight chance of showers. Mostly sunny, with a high near 69.
- Night
A slight chance of showers. Partly cloudy, with a low around 52.
Night
A slight chance of showers. Partly cloudy, with a low around 52.
A slight chance of showers. Partly cloudy, with a low around 52.
Currently
![]() |
73°F°F |
29.85 inHg.
Barometer 60.75%
Humidity N. 0mph Wind |
Clear |