Monthly outlook for Lake Cassidy, WA: average high 52.4°, average low 42.3°. That is 0.8° above the climate normal for October. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 10 days and 5.0 inches. The warmest day looks like 10 November (58°), the coolest 31 October (36.4°).
52.4°/42.3°
Average high / low
+0.8°
Above normal
7 / 10
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
52.9°
51.7°
+0.7°
10 November – 19 November
51.6°
48.9°
+1.5°
20 November – 29 November
at normal
45.4°
—
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).
Sun, 0152° / 40°0
52 °
Lake Cassidy, Sunday, 1 November
Mostly clear. High 52°, low 40°.
Pressure30.09 inHg
Wind2.3 mph SW
Humidity76%
Visibility6.2 mi
Dew point40°
Mon, 0252° / 38°0
52 °
Lake Cassidy, Monday, 2 November
Overcast. High 52°, low 38°.
Pressure30.21 inHg
Wind1.9 mph SW
Humidity68%
Visibility6.2 mi
Dew point39°
Tue, 0356° / 40°0
56 °
Lake Cassidy, Tuesday, 3 November
Overcast. High 56°, low 40°.
Pressure30.06 inHg
Wind3 mph W
Humidity65%
Visibility6.2 mi
Dew point42°
Wed, 0455° / 37°0.04
55 °
Lake Cassidy, Wednesday, 4 November
Light rain. High 55°, low 37°.
Pressure30.06 inHg
Wind2.1 mph S
Humidity73%
Visibility6.2 mi
Dew point43°
Thu, 0555° / 47°0.2
55 °
Lake Cassidy, Thursday, 5 November
Rain. High 55°, low 47°.
Pressure30.21 inHg
Wind10.6 mph SE
Humidity89%
Visibility—
Dew point47°
Fri, 0653° / 43°0.29
53 °
Lake Cassidy, Friday, 6 November
Rain. High 53°, low 43°.
Pressure30.21 inHg
Wind9 mph SE
Humidity74%
Visibility—
Dew point41°
Sat, 0750° / 42°0
50 °
Lake Cassidy, Saturday, 7 November
Overcast. High 50°, low 42°.
Pressure30.03 inHg
Wind6.2 mph SE
Humidity56%
Visibility—
Dew point32°
Sun, 0853° / 43°0.47
53 °
Lake Cassidy, Sunday, 8 November
Rain. High 53°, low 43°.
Pressure30.00 inHg
Wind14.9 mph S
Humidity88%
Visibility—
Dew point46°
Mon, 0952° / 40°0
52 °
Lake Cassidy, Monday, 9 November
Overcast. High 52°, low 40°.
Pressure29.91 inHg
Wind4.2 mph E
Humidity69%
Visibility—
Dew point37°
Tue, 1058° / 46°0.15
58 °
Lake Cassidy, Tuesday, 10 November
Light rain. High 58°, low 46°.
Pressure29.77 inHg
Wind6 mph E
Humidity88%
Visibility—
Dew point45°
Wed, 1149° / 47°0.61
49 °
Lake Cassidy, Wednesday, 11 November
Rain. High 49°, low 47°.
Pressure29.53 inHg
Wind4 mph NW
Humidity98%
Visibility—
Dew point48°
Thu, 1251° / 43°0.14
51 °
Lake Cassidy, Thursday, 12 November
Light rain. High 51°, low 43°.
Pressure29.94 inHg
Wind3.4 mph NW
Humidity84%
Visibility—
Dew point44°
Fri, 1350° / 40°0
50 °
Lake Cassidy, Friday, 13 November
Overcast. High 50°, low 40°.
Pressure30.12 inHg
Wind3.1 mph NW
Humidity77%
Visibility—
Dew point40°
Sat, 1451° / 46°0.04
51 °
Lake Cassidy, Saturday, 14 November
Light rain. High 51°, low 46°.
Pressure30.15 inHg
Wind3.9 mph E
Humidity90%
Visibility—
Dew point44°
Sun, 1551° / 47°0.14
51 °
Lake Cassidy, Sunday, 15 November
Light rain. High 51°, low 47°.
Pressure30.06 inHg
Wind8 mph SE
Humidity89%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2745° / 37°0.35
45 °
Lake Cassidy, Friday, 27 November
Climate normal for this date — 60-year average.
Average high45°
Average low37°
Average precipitation0.35 in
Chance of precipitation70%
Record high55° (2014)
Record low19° (1985)
Sat, 2845° / 35°0.26
45 °
Lake Cassidy, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.26 in
Chance of precipitation60%
Record high56° (2021)
Record low13° (1985)
Sun, 2944° / 35°0.27
44 °
Lake Cassidy, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.27 in
Chance of precipitation55%
Record high55° (2021)
Record low7° (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.