Monthly outlook for Friday Harbor, WA: average high 49.7°, average low 45.5°. That is 1.3° above the climate normal for November. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 9 days and 3.2 inches. The warmest day looks like 13 November (59.5°), the coolest 21 November (40.8°).
49.7°/45.5°
Average high / low
+1.3°
Above normal
7 / 9
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
50.7°
48.1°
+1.5°
22 November – 1 December
48.1°
45.9°
+1.2°
2 December – 11 December
at normal
45°
—
November records over 66 years
60.4°8 November 2016All-time high
14.5°27 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Roche Harbor (6 mi).
Fri, 1360° / 54°0
60 °
Friday Harbor, Friday, 13 November
Overcast. High 60°, low 54°.
Pressure29.23 inHg
Wind17.7 mph SE
Humidity70%
Visibility6.2 mi
Dew point47°
Sat, 1456° / 51°0.08
56 °
Friday Harbor, Saturday, 14 November
Light rain. High 56°, low 51°.
Pressure29.62 inHg
Wind24.7 mph SE
Humidity79%
Visibility6.2 mi
Dew point47°
Sun, 1553° / 48°0.18
53 °
Friday Harbor, Sunday, 15 November
Light rain. High 53°, low 48°.
Pressure29.80 inHg
Wind4 mph SE
Humidity82%
Visibility6.0 mi
Dew point46°
Mon, 1649° / 45°0.08
49 °
Friday Harbor, Monday, 16 November
Light rain. High 49°, low 45°.
Pressure30.03 inHg
Wind7.9 mph S
Humidity83%
Visibility6.2 mi
Dew point43°
Tue, 1748° / 44°0
48 °
Friday Harbor, Tuesday, 17 November
Partly cloudy. High 48°, low 44°.
Pressure30.09 inHg
Wind11.6 mph SE
Humidity86%
Visibility—
Dew point42°
Wed, 1846° / 43°0
46 °
Friday Harbor, Wednesday, 18 November
Partly cloudy. High 46°, low 43°.
Pressure29.85 inHg
Wind10.3 mph N
Humidity79%
Visibility—
Dew point40°
Thu, 1946° / 43°0
46 °
Friday Harbor, Thursday, 19 November
Mostly clear. High 46°, low 43°.
Pressure30.03 inHg
Wind13 mph N
Humidity70%
Visibility—
Dew point35°
Fri, 2046° / 41°0
46 °
Friday Harbor, Friday, 20 November
Overcast. High 46°, low 41°.
Pressure30.15 inHg
Wind8.3 mph N
Humidity71%
Visibility—
Dew point34°
Sat, 2146° / 41°0
46 °
Friday Harbor, Saturday, 21 November
Partly cloudy. High 46°, low 41°.
Pressure30.15 inHg
Wind6.6 mph N
Humidity65%
Visibility—
Dew point33°
Sun, 2246° / 42°0
46 °
Friday Harbor, Sunday, 22 November
Overcast. High 46°, low 42°.
Pressure30.15 inHg
Wind2.8 mph N
Humidity68%
Visibility—
Dew point34°
Mon, 2345° / 41°0
45 °
Friday Harbor, Monday, 23 November
Mostly clear. High 45°, low 41°.
Pressure30.18 inHg
Wind3.1 mph N
Humidity72%
Visibility—
Dew point35°
Tue, 2445° / 42°0.07
45 °
Friday Harbor, Tuesday, 24 November
Light rain. High 45°, low 42°.
Pressure30.12 inHg
Wind7 mph E
Humidity78%
Visibility—
Dew point37°
Wed, 2550° / 44°0.95
50 °
Friday Harbor, Wednesday, 25 November
Rain. High 50°, low 44°.
Pressure29.88 inHg
Wind20.5 mph SE
Humidity91%
Visibility—
Dew point45°
Thu, 2651° / 48°0.3
51 °
Friday Harbor, Thursday, 26 November
Light rain. High 51°, low 48°.
Pressure29.97 inHg
Wind19.9 mph W
Humidity88%
Visibility—
Dew point46°
Fri, 2752° / 48°0.53
52 °
Friday Harbor, Friday, 27 November
Rain. High 52°, low 48°.
Pressure30.00 inHg
Wind20.6 mph W
Humidity81%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2846° / 41°0.2
46 °
Friday Harbor, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high46°
Average low41°
Average precipitation0.2 in
Chance of precipitation43%
Record high53° (1995)
Record low19° (1985)
Sun, 2946° / 40°0.18
46 °
Friday Harbor, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.18 in
Chance of precipitation53%
Record high53° (1995)
Record low19° (1985)
Mon, 3046° / 41°0.17
46 °
Friday Harbor, Monday, 30 November
Climate normal for this date — 60-year average.
Average high46°
Average low41°
Average precipitation0.17 in
Chance of precipitation65%
Record high51° (1999)
Record low22° (1985)
Tue, 0146° / 41°0.19
46 °
Friday Harbor, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low41°
Average precipitation0.19 in
Chance of precipitation53%
Record high53° (1966)
Record low23° (1985)
Wed, 0246° / 41°0.2
46 °
Friday Harbor, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low41°
Average precipitation0.2 in
Chance of precipitation57%
Record high52° (1977)
Record low25° (2022)
Thu, 0346° / 40°0.24
46 °
Friday Harbor, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.24 in
Chance of precipitation55%
Record high54° (2007)
Record low29° (1972)
Fri, 0445° / 40°0.19
45 °
Friday Harbor, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low40°
Average precipitation0.19 in
Chance of precipitation50%
Record high53° (2023)
Record low27° (1972)
Sat, 0545° / 40°0.11
45 °
Friday Harbor, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high45°
Average low40°
Average precipitation0.11 in
Chance of precipitation38%
Record high54° (2023)
Record low29° (1972)
Sun, 0645° / 40°0.15
45 °
Friday Harbor, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high45°
Average low40°
Average precipitation0.15 in
Chance of precipitation50%
Record high51° (1987)
Record low25° (1972)
Mon, 0745° / 40°0.15
45 °
Friday Harbor, Monday, 7 December
Climate normal for this date — 60-year average.
Average high45°
Average low40°
Average precipitation0.15 in
Chance of precipitation53%
Record high51° (2024)
Record low20° (1972)
Tue, 0844° / 40°0.22
44 °
Friday Harbor, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high44°
Average low40°
Average precipitation0.22 in
Chance of precipitation52%
Record high54° (2025)
Record low23° (1972)
Wed, 0945° / 40°0.22
45 °
Friday Harbor, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high45°
Average low40°
Average precipitation0.22 in
Chance of precipitation60%
Record high54° (2014)
Record low29° (1972)
Thu, 1046° / 40°0.32
46 °
Friday Harbor, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high46°
Average low40°
Average precipitation0.32 in
Chance of precipitation65%
Record high57° (2014)
Record low29° (1961)
Fri, 1145° / 41°0.24
45 °
Friday Harbor, Friday, 11 December
Climate normal for this date — 60-year average.
Average high45°
Average low41°
Average precipitation0.24 in
Chance of precipitation57%
Record high53° (2025)
Record low30° (1971)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Friday Harbor, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Friday Harbor, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.