Friday Harbor Weather Forecast
- 53
- 77
Mostly Sunny
- 52
- 71
Partly Sunny
- 51
- 69
Partly Sunny
- 51
- 70
Mostly Cloudy
- 52
- 71
Partly Sunny
- 53
- 72
Partly Sunny
Today 17 Jul San Juan County
Sunny. Highs in the 70s. Light wind.
Tonight 17 Jul San Juan County
Mostly clear. Lows in the 50s to lower 60s. Light wind.
Friday Harbor Temperature Statistics
July Temperature
Friday Harbor Airport (0.6 miles)
Lowest 4 July, 2025
46.7 °FAverage July
60.4 °FHighest 13 July, 2025
78.1 °F
Climate (2020–Present)
Friday Harbor Airport (0.6 miles)
Average Low 2020–2025
44.3 °FAverage 2020–2025
51.7 °FAverage High 2020–2025
59.5 °F