Monthly outlook for South Arbor, WA: average high 54.3°, average low 47.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 12 days (about 4.9 inches), against a normal of 10 days and 5.1 inches. The warmest day looks like 5 November (59.5°), the coolest 1 November (40.6°).
54.3°/47.5°
Average high / low
+0.5°
Above normal
12 / 10
Wet days / normal
4.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
53.3°
54.1°
-0.4°
6 November – 15 November
55.9°
51.9°
+2.3°
16 November – 25 November
at normal
48.8°
—
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 (0 mi).
Wed, 2852° / 46°0.41
52 °
South Arbor, Wednesday, 28 October
Rain. High 52°, low 46°.
Pressure30.00 inHg
Wind8.4 mph W
Humidity75%
Visibility2.7 mi
Dew point42°
Thu, 2951° / 44°0.58
51 °
South Arbor, Thursday, 29 October
Rain. High 51°, low 44°.
Pressure29.97 inHg
Wind5.3 mph SE
Humidity82%
Visibility3.4 mi
Dew point44°
Fri, 3049° / 42°0.77
49 °
South Arbor, Friday, 30 October
Rain. High 49°, low 42°.
Pressure29.91 inHg
Wind9 mph SE
Humidity84%
Visibility6.2 mi
Dew point43°
Sat, 3152° / 42°0.06
52 °
South Arbor, Saturday, 31 October
Light rain. High 52°, low 42°.
Pressure29.97 inHg
Wind8.1 mph E
Humidity86%
Visibility—
Dew point42°
Sun, 0152° / 41°0.04
52 °
South Arbor, Sunday, 1 November
Light rain. High 52°, low 41°.
Pressure30.21 inHg
Wind5.5 mph E
Humidity95%
Visibility—
Dew point43°
Mon, 0254° / 43°0
54 °
South Arbor, Monday, 2 November
Overcast. High 54°, low 43°.
Pressure30.36 inHg
Wind14.4 mph E
Humidity73%
Visibility—
Dew point39°
Tue, 0357° / 47°0
57 °
South Arbor, Tuesday, 3 November
Overcast. High 57°, low 47°.
Pressure30.03 inHg
Wind16 mph E
Humidity60%
Visibility—
Dew point37°
Wed, 0455° / 50°0.03
55 °
South Arbor, Wednesday, 4 November
Light rain. High 55°, low 50°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity61%
Visibility—
Dew point39°
Thu, 0559° / 50°0.05
59 °
South Arbor, Thursday, 5 November
Light rain. High 59°, low 50°.
Pressure30.03 inHg
Wind10.4 mph E
Humidity83%
Visibility—
Dew point47°
Fri, 0658° / 53°0
58 °
South Arbor, Friday, 6 November
Overcast. High 58°, low 53°.
Pressure29.74 inHg
Wind15.8 mph E
Humidity60%
Visibility—
Dew point43°
Sat, 0755° / 53°0.14
55 °
South Arbor, Saturday, 7 November
Light rain. High 55°, low 53°.
Pressure29.77 inHg
Wind19.6 mph S
Humidity90%
Visibility—
Dew point50°
Sun, 0855° / 51°0.69
55 °
South Arbor, Sunday, 8 November
Rain. High 55°, low 51°.
Pressure29.97 inHg
Wind29.1 mph S
Humidity85%
Visibility—
Dew point50°
Mon, 0955° / 52°0.44
55 °
South Arbor, Monday, 9 November
Rain. High 55°, low 52°.
Pressure30.06 inHg
Wind17 mph S
Humidity91%
Visibility—
Dew point52°
Tue, 1055° / 50°0.53
55 °
South Arbor, Tuesday, 10 November
Rain. High 55°, low 50°.
Pressure29.94 inHg
Wind21.6 mph S
Humidity90%
Visibility—
Dew point51°
Wed, 1157° / 49°0.89
57 °
South Arbor, Wednesday, 11 November
Heavy rain. High 57°, low 49°.
Pressure29.68 inHg
Wind17.7 mph SW
Humidity87%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1252° / 44°0.4
52 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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 °
South Arbor, 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)
Fri, 2049° / 41°0.36
49 °
South Arbor, Friday, 20 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.36 in
Chance of precipitation58%
Record high62° (2002)
Record low28° (1977)
Sat, 2149° / 39°0.36
49 °
South Arbor, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.36 in
Chance of precipitation58%
Record high58° (2017)
Record low26° (1978)
Sun, 2247° / 39°0.35
47 °
South Arbor, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.35 in
Chance of precipitation58%
Record high58° (2017)
Record low18° (1985)
Mon, 2348° / 40°0.48
48 °
South Arbor, Monday, 23 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.48 in
Chance of precipitation73%
Record high57° (2017)
Record low16° (1985)
Tue, 2448° / 40°0.42
48 °
South Arbor, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.42 in
Chance of precipitation68%
Record high57° (2022)
Record low19° (1985)
Wed, 2548° / 40°0.35
48 °
South Arbor, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.35 in
Chance of precipitation72%
Record high56° (2014)
Record low22° (1985)
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 South Arbor, 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 South Arbor, 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.