Monthly outlook for South Arbor, WA: average high 54.3°, average low 45.9°. That is 0.6° above the climate normal for October. Precipitation is expected on 8 days (about 5.2 inches), against a normal of 10 days and 5.3 inches. The warmest day looks like 6 November (57.2°), the coolest 1 November (39.1°).
54.3°/45.9°
Average high / low
+0.6°
Above normal
8 / 10
Wet days / normal
5.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
53.9°
53.8°
+0°
7 November – 16 November
54.8°
51.6°
+1.8°
17 November – 26 November
at normal
48.5°
—
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).
Thu, 2949° / 44°0.68
49 °
South Arbor, Thursday, 29 October
Rain. High 49°, low 44°.
Pressure29.94 inHg
Wind9.1 mph SE
Humidity86%
Visibility2.4 mi
Dew point44°
Fri, 3051° / 41°0.31
51 °
South Arbor, Friday, 30 October
Rain. High 51°, low 41°.
Pressure29.94 inHg
Wind6.7 mph E
Humidity85%
Visibility2.4 mi
Dew point44°
Sat, 3153° / 41°0
53 °
South Arbor, Saturday, 31 October
Overcast. High 53°, low 41°.
Pressure30.00 inHg
Wind4.9 mph E
Humidity81%
Visibility6.2 mi
Dew point45°
Sun, 0152° / 39°0
52 °
South Arbor, Sunday, 1 November
Partly cloudy. High 52°, low 39°.
Pressure30.24 inHg
Wind5 mph SW
Humidity87%
Visibility—
Dew point42°
Mon, 0255° / 41°0
55 °
South Arbor, Monday, 2 November
Overcast. High 55°, low 41°.
Pressure30.30 inHg
Wind13.5 mph E
Humidity75%
Visibility—
Dew point40°
Tue, 0356° / 46°0
56 °
South Arbor, Tuesday, 3 November
Overcast. High 56°, low 46°.
Pressure30.15 inHg
Wind10.1 mph E
Humidity67%
Visibility—
Dew point38°
Wed, 0457° / 45°0
57 °
South Arbor, Wednesday, 4 November
Overcast. High 57°, low 45°.
Pressure29.88 inHg
Wind11.1 mph E
Humidity66%
Visibility—
Dew point39°
Thu, 0557° / 50°0
57 °
South Arbor, Thursday, 5 November
Overcast. High 57°, low 50°.
Pressure29.97 inHg
Wind4.9 mph SE
Humidity61%
Visibility—
Dew point40°
Fri, 0657° / 51°0.25
57 °
South Arbor, Friday, 6 November
Rain. High 57°, low 51°.
Pressure29.80 inHg
Wind11.4 mph E
Humidity67%
Visibility—
Dew point44°
Sat, 0754° / 50°0.39
54 °
South Arbor, Saturday, 7 November
Rain. High 54°, low 50°.
Pressure29.50 inHg
Wind16.5 mph E
Humidity87%
Visibility—
Dew point49°
Sun, 0855° / 48°0.03
55 °
South Arbor, Sunday, 8 November
Light rain. High 55°, low 48°.
Pressure30.06 inHg
Wind9.4 mph SW
Humidity85%
Visibility—
Dew point49°
Mon, 0957° / 45°0
57 °
South Arbor, Monday, 9 November
Overcast. High 57°, low 45°.
Pressure30.03 inHg
Wind12.3 mph E
Humidity78%
Visibility—
Dew point43°
Tue, 1053° / 47°0.4
53 °
South Arbor, Tuesday, 10 November
Rain. High 53°, low 47°.
Pressure29.83 inHg
Wind10.9 mph E
Humidity92%
Visibility—
Dew point46°
Wed, 1156° / 50°2.21
56 °
South Arbor, Wednesday, 11 November
Heavy rain. High 56°, low 50°.
Pressure29.56 inHg
Wind19 mph SE
Humidity88%
Visibility—
Dew point52°
Thu, 1254° / 52°0.54
54 °
South Arbor, Thursday, 12 November
Rain. High 54°, low 52°.
Pressure29.50 inHg
Wind21.8 mph S
Humidity86%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 2647° / 39°0.34
47 °
South Arbor, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.34 in
Chance of precipitation65%
Record high56° (2014)
Record low28° (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.