Monthly outlook for Westhaven, WA: average high 56.9°, average low 49.6°. That is 1.1° above the climate normal for October. Precipitation is expected on 4 days (about 2.3 inches), against a normal of 9 days and 4.9 inches. The warmest day looks like 28 October (62.7°), the coolest 24 October (41.9°).
56.9°/49.6°
Average high / low
+1.1°
Above normal
4 / 9
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
57.3°
55.7°
+0.9°
31 October – 9 November
56.3°
53.2°
+1.8°
10 November – 19 November
at normal
50.9°
—
October records over 66 years
81.7°6 October 1987All-time high
30.7°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Markham (6 mi).
Thu, 2258° / 47°0
58 °
Westhaven, Thursday, 22 October
Overcast. High 58°, low 47°.
Pressure30.03 inHg
Wind20.8 mph NW
Humidity81%
Visibility6.2 mi
Dew point48°
Fri, 2353° / 44°0
53 °
Westhaven, Friday, 23 October
Clear. High 53°, low 44°.
Pressure30.33 inHg
Wind1.8 mph E
Humidity82%
Visibility0.9 mi
Dew point43°
Sat, 2451° / 42°0
51 °
Westhaven, Saturday, 24 October
Overcast. High 51°, low 42°.
Pressure30.21 inHg
Wind1.4 mph NW
Humidity91%
Visibility—
Dew point43°
Sun, 2558° / 48°0
58 °
Westhaven, Sunday, 25 October
Overcast. High 58°, low 48°.
Pressure30.09 inHg
Wind12 mph E
Humidity68%
Visibility—
Dew point45°
Mon, 2659° / 51°0
59 °
Westhaven, Monday, 26 October
Partly cloudy. High 59°, low 51°.
Pressure30.18 inHg
Wind12.8 mph E
Humidity66%
Visibility—
Dew point46°
Tue, 2759° / 49°0
59 °
Westhaven, Tuesday, 27 October
Mostly clear. High 59°, low 49°.
Pressure30.15 inHg
Wind14.3 mph NE
Humidity61%
Visibility—
Dew point44°
Wed, 2863° / 50°0
63 °
Westhaven, Wednesday, 28 October
Clear. High 63°, low 50°.
Pressure30.03 inHg
Wind15.7 mph NE
Humidity50%
Visibility—
Dew point42°
Thu, 2960° / 50°0
60 °
Westhaven, Thursday, 29 October
Clear. High 60°, low 50°.
Pressure29.94 inHg
Wind15 mph E
Humidity54%
Visibility—
Dew point42°
Fri, 3055° / 52°0
55 °
Westhaven, Friday, 30 October
Overcast. High 55°, low 52°.
Pressure29.91 inHg
Wind12.8 mph W
Humidity75%
Visibility—
Dew point47°
Sat, 3154° / 51°0
54 °
Westhaven, Saturday, 31 October
Overcast. High 54°, low 51°.
Pressure30.00 inHg
Wind12 mph NW
Humidity75%
Visibility—
Dew point46°
Sun, 0156° / 49°0
56 °
Westhaven, Sunday, 1 November
Overcast. High 56°, low 49°.
Pressure30.00 inHg
Wind13.1 mph E
Humidity75%
Visibility—
Dew point43°
Mon, 0257° / 50°1.35
57 °
Westhaven, Monday, 2 November
Rain. High 57°, low 50°.
Pressure29.88 inHg
Wind29.4 mph S
Humidity93%
Visibility—
Dew point49°
Tue, 0357° / 53°0.72
57 °
Westhaven, Tuesday, 3 November
Rain. High 57°, low 53°.
Pressure30.09 inHg
Wind31.5 mph S
Humidity98%
Visibility—
Dew point55°
Wed, 0457° / 53°0.1
57 °
Westhaven, Wednesday, 4 November
Light rain. High 57°, low 53°.
Pressure30.09 inHg
Wind9.4 mph E
Humidity97%
Visibility—
Dew point54°
Thu, 0557° / 56°0.16
57 °
Westhaven, Thursday, 5 November
Light rain. High 57°, low 56°.
Pressure30.30 inHg
Wind8.6 mph E
Humidity97%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0653° / 44°0.4
53 °
Westhaven, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low44°
Average precipitation0.4 in
Chance of precipitation70%
Record high61° (1976)
Record low34° (2017)
Sat, 0753° / 45°0.34
53 °
Westhaven, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low45°
Average precipitation0.34 in
Chance of precipitation70%
Record high61° (2024)
Record low35° (1973)
Sun, 0852° / 43°0.25
52 °
Westhaven, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.25 in
Chance of precipitation58%
Record high65° (2016)
Record low34° (1977)
Mon, 0952° / 43°0.34
52 °
Westhaven, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.34 in
Chance of precipitation67%
Record high64° (2025)
Record low32° (1982)
Tue, 1052° / 43°0.26
52 °
Westhaven, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.26 in
Chance of precipitation53%
Record high62° (1976)
Record low32° (1982)
Wed, 1152° / 43°0.39
52 °
Westhaven, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.39 in
Chance of precipitation63%
Record high61° (1976)
Record low30° (1985)
Thu, 1252° / 44°0.4
52 °
Westhaven, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.4 in
Chance of precipitation67%
Record high60° (1967)
Record low29° (1985)
Fri, 1351° / 43°0.45
51 °
Westhaven, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.45 in
Chance of precipitation68%
Record high61° (1969)
Record low28° (1978)
Sat, 1451° / 43°0.38
51 °
Westhaven, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.38 in
Chance of precipitation52%
Record high63° (1995)
Record low29° (1978)
Sun, 1551° / 42°0.41
51 °
Westhaven, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.41 in
Chance of precipitation65%
Record high58° (2001)
Record low31° (1964)
Mon, 1650° / 43°0.37
50 °
Westhaven, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.37 in
Chance of precipitation77%
Record high60° (1965)
Record low31° (2000)
Tue, 1750° / 41°0.32
50 °
Westhaven, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.32 in
Chance of precipitation68%
Record high60° (1995)
Record low32° (1961)
Wed, 1849° / 41°0.28
49 °
Westhaven, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.28 in
Chance of precipitation62%
Record high57° (2023)
Record low29° (1985)
Thu, 1950° / 41°0.47
50 °
Westhaven, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.47 in
Chance of precipitation72%
Record high60° (1987)
Record low28° (1977)
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 Westhaven, 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 Westhaven, 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.