10-day forecast for Friday Harbor, WA: 50° to 74°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
74°
Best day: Monday, August 10
57° · 0.12 in
Worst day: Monday, August 17
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1074° / 50°0
Morning56°feels 55°
Afternoon73°feels 73°
Evening62°feels 61°
Overnight53°feels 52°
74 °
Friday Harbor, Monday, 10 August
Mostly clear. High 74°, low 50°.
Pressure30.09 inHg
Wind7.8 mph S
Humidity77%
Visibility6.2 mi
Dew point52°
Tue, 1164° / 54°0
Morning57°feels 57°
Afternoon64°feels 63°
Evening61°feels 60°
Overnight55°feels 55°
64 °
Friday Harbor, Tuesday, 11 August
Clear. High 64°, low 54°.
Pressure30.12 inHg
Wind3.1 mph SW
Humidity72%
Visibility6.2 mi
Dew point53°
Wed, 1265° / 56°0
Morning58°feels 57°
Afternoon65°feels 64°
Evening60°feels 60°
Overnight57°feels 56°
65 °
Friday Harbor, Wednesday, 12 August
Clear. High 65°, low 56°.
Pressure30.00 inHg
Wind4.7 mph N
Humidity72%
Visibility6.2 mi
Dew point54°
Thu, 1367° / 56°0
Morning61°feels 61°
Afternoon66°feels 65°
Evening61°feels 61°
Overnight57°feels 57°
67 °
Friday Harbor, Thursday, 13 August
Clear. High 67°, low 56°.
Pressure29.88 inHg
Wind4.8 mph SW
Humidity68%
Visibility—
Dew point55°
Fri, 1465° / 56°0
Morning60°feels 60°
Afternoon64°feels 64°
Evening61°feels 61°
Overnight59°feels 59°
65 °
Friday Harbor, Friday, 14 August
Overcast. High 65°, low 56°.
Pressure29.94 inHg
Wind8.4 mph SW
Humidity70%
Visibility—
Dew point54°
Sat, 1563° / 55°0
Morning58°feels 58°
Afternoon61°feels 61°
Evening61°feels 61°
Overnight59°feels 58°
63 °
Friday Harbor, Saturday, 15 August
Overcast. High 63°, low 55°.
Pressure30.00 inHg
Wind11.4 mph SW
Humidity77%
Visibility—
Dew point54°
Sun, 1663° / 56°0
Morning58°feels 57°
Afternoon60°feels 59°
Evening61°feels 60°
Overnight58°feels 58°
63 °
Friday Harbor, Sunday, 16 August
Overcast. High 63°, low 56°.
Pressure30.00 inHg
Wind12.3 mph S
Humidity77%
Visibility—
Dew point52°
Mon, 1757° / 56°0.12
Morning57°feels 56°
Afternoon57°feels 57°
Evening56°feels 55°
Overnight56°feels 56°
57 °
Friday Harbor, Monday, 17 August
Light rain. High 57°, low 56°.
Pressure29.97 inHg
Wind6.3 mph SE
Humidity95%
Visibility—
Dew point56°
Tue, 1863° / 55°0
Morning58°feels 58°
Afternoon62°feels 62°
Evening59°feels 58°
Overnight57°feels 57°
63 °
Friday Harbor, Tuesday, 18 August
Partly cloudy. High 63°, low 55°.
Pressure30.03 inHg
Wind5.3 mph SE
Humidity72%
Visibility—
Dew point53°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Friday Harbor, WA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.