Monthly outlook for Lake Cassidy, WA: average high 56.2°, average low 41.7°. That is 2.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 10 days and 4.7 inches. The warmest day looks like 11 November (67.2°), the coolest 31 October (33.2°).
56.2°/41.7°
Average high / low
+2.5°
Above normal
4 / 10
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
53.5°
52.4°
+0.7°
7 November – 16 November
60.7°
49.9°
+6°
17 November – 26 November
at normal
46.2°
—
October records over 66 years
84.2°1 October 1987All-time high
25.9°29 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Marysville (3 mi).
Thu, 2954° / 43°0.52
54 °
Lake Cassidy, Thursday, 29 October
Rain. High 54°, low 43°.
Pressure30.00 inHg
Wind1.2 mph NE
Humidity70%
Visibility6.2 mi
Dew point42°
Fri, 3047° / 36°0.32
47 °
Lake Cassidy, Friday, 30 October
Rain. High 47°, low 36°.
Pressure29.94 inHg
Wind3.1 mph NE
Humidity98%
Visibility6.2 mi
Dew point44°
Sat, 3155° / 33°0
55 °
Lake Cassidy, Saturday, 31 October
Mostly clear. High 55°, low 33°.
Pressure30.03 inHg
Wind1.1 mph N
Humidity76%
Visibility2.8 mi
Dew point43°
Sun, 0151° / 34°0
51 °
Lake Cassidy, Sunday, 1 November
Overcast. High 51°, low 34°.
Pressure30.18 inHg
Wind0.5 mph SW
Humidity81%
Visibility6.2 mi
Dew point41°
Mon, 0253° / 34°0
53 °
Lake Cassidy, Monday, 2 November
Overcast. High 53°, low 34°.
Pressure30.30 inHg
Wind3.2 mph W
Humidity75%
Visibility—
Dew point36°
Tue, 0356° / 37°0
56 °
Lake Cassidy, Tuesday, 3 November
Overcast. High 56°, low 37°.
Pressure30.21 inHg
Wind4.2 mph NW
Humidity56%
Visibility—
Dew point32°
Wed, 0457° / 39°0
57 °
Lake Cassidy, Wednesday, 4 November
Overcast. High 57°, low 39°.
Pressure29.94 inHg
Wind2.4 mph W
Humidity48%
Visibility—
Dew point30°
Thu, 0554° / 42°0
54 °
Lake Cassidy, Thursday, 5 November
Overcast. High 54°, low 42°.
Pressure29.91 inHg
Wind2.9 mph E
Humidity58%
Visibility—
Dew point35°
Fri, 0660° / 42°0
60 °
Lake Cassidy, Friday, 6 November
Overcast. High 60°, low 42°.
Pressure29.80 inHg
Wind5.6 mph S
Humidity48%
Visibility—
Dew point33°
Sat, 0759° / 41°0
59 °
Lake Cassidy, Saturday, 7 November
Overcast. High 59°, low 41°.
Pressure29.88 inHg
Wind5.4 mph S
Humidity48%
Visibility—
Dew point33°
Sun, 0857° / 43°0
57 °
Lake Cassidy, Sunday, 8 November
Overcast. High 57°, low 43°.
Pressure30.27 inHg
Wind3.7 mph S
Humidity71%
Visibility—
Dew point42°
Mon, 0955° / 50°0.04
55 °
Lake Cassidy, Monday, 9 November
Light rain. High 55°, low 50°.
Pressure30.21 inHg
Wind2.9 mph NW
Humidity68%
Visibility—
Dew point43°
Tue, 1062° / 49°0
62 °
Lake Cassidy, Tuesday, 10 November
Overcast. High 62°, low 49°.
Pressure30.06 inHg
Wind6.5 mph SE
Humidity71%
Visibility—
Dew point46°
Wed, 1167° / 51°0
67 °
Lake Cassidy, Wednesday, 11 November
Partly cloudy. High 67°, low 51°.
Pressure30.09 inHg
Wind3 mph NW
Humidity57%
Visibility—
Dew point45°
Thu, 1264° / 50°0
64 °
Lake Cassidy, Thursday, 12 November
Overcast. High 64°, low 50°.
Pressure29.91 inHg
Wind5.2 mph S
Humidity55%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1350° / 40°0.36
50 °
Lake Cassidy, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.36 in
Chance of precipitation65%
Record high63° (1967)
Record low25° (1978)
Sat, 1450° / 40°0.31
50 °
Lake Cassidy, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.31 in
Chance of precipitation58%
Record high62° (1999)
Record low26° (1978)
Sun, 1549° / 39°0.34
49 °
Lake Cassidy, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.34 in
Chance of precipitation70%
Record high57° (2008)
Record low29° (1978)
Mon, 1648° / 39°0.33
48 °
Lake Cassidy, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.33 in
Chance of precipitation75%
Record high61° (1965)
Record low27° (2023)
Tue, 1748° / 38°0.31
48 °
Lake Cassidy, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.31 in
Chance of precipitation68%
Record high59° (2008)
Record low26° (2021)
Wed, 1847° / 38°0.26
47 °
Lake Cassidy, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.26 in
Chance of precipitation62%
Record high58° (1965)
Record low21° (1985)
Thu, 1947° / 38°0.38
47 °
Lake Cassidy, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.38 in
Chance of precipitation73%
Record high59° (1987)
Record low23° (1985)
Fri, 2047° / 38°0.32
47 °
Lake Cassidy, Friday, 20 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.32 in
Chance of precipitation63%
Record high61° (2002)
Record low21° (1977)
Sat, 2146° / 37°0.31
46 °
Lake Cassidy, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.31 in
Chance of precipitation57%
Record high58° (2002)
Record low13° (1985)
Sun, 2245° / 36°0.26
45 °
Lake Cassidy, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.26 in
Chance of precipitation62%
Record high62° (2017)
Record low14° (1985)
Mon, 2345° / 37°0.45
45 °
Lake Cassidy, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.45 in
Chance of precipitation75%
Record high57° (2017)
Record low0° (1985)
Tue, 2446° / 37°0.37
46 °
Lake Cassidy, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.37 in
Chance of precipitation70%
Record high55° (1995)
Record low6° (1985)
Wed, 2545° / 37°0.37
45 °
Lake Cassidy, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.37 in
Chance of precipitation73%
Record high53° (1995)
Record low12° (1993)
Thu, 2645° / 36°0.25
45 °
Lake Cassidy, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high45°
Average low36°
Average precipitation0.25 in
Chance of precipitation58%
Record high56° (2014)
Record low16° (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 Lake Cassidy, 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 Lake Cassidy, 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.