Monthly outlook for Lake Cassidy, WA: average high 51.5°, average low 41.7°. That is 0.3° below the climate normal for October. Precipitation is expected on 12 days (about 5.6 inches), against a normal of 9 days and 4.6 inches. The warmest day looks like 6 November (57.9°), the coolest 31 October (30.4°).
51.5°/41.7°
Average high / low
−0.3°
Below normal
12 / 9
Wet days / normal
5.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
50.5°
52.9°
-1.3°
5 November – 14 November
53.2°
50.4°
+1.5°
15 November – 24 November
at normal
46.9°
—
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).
Tue, 2753° / 44°0.48
53 °
Lake Cassidy, Tuesday, 27 October
Rain. High 53°, low 44°.
Pressure30.00 inHg
Wind4 mph S
Humidity93%
Visibility6.2 mi
Dew point48°
Wed, 2848° / 41°0.99
48 °
Lake Cassidy, Wednesday, 28 October
Rain. High 48°, low 41°.
Pressure29.94 inHg
Wind7.3 mph SE
Humidity91%
Visibility3.6 mi
Dew point44°
Thu, 2946° / 37°0.27
46 °
Lake Cassidy, Thursday, 29 October
Rain. High 46°, low 37°.
Pressure30.00 inHg
Wind3.5 mph E
Humidity88%
Visibility6.2 mi
Dew point43°
Fri, 3049° / 33°0.2
49 °
Lake Cassidy, Friday, 30 October
Rain. High 49°, low 33°.
Pressure29.94 inHg
Wind2.5 mph E
Humidity88%
Visibility—
Dew point38°
Sat, 3148° / 30°0.11
48 °
Lake Cassidy, Saturday, 31 October
Light rain. High 48°, low 30°.
Pressure30.03 inHg
Wind5 mph E
Humidity76%
Visibility—
Dew point33°
Sun, 0149° / 38°0.03
49 °
Lake Cassidy, Sunday, 1 November
Light rain. High 49°, low 38°.
Pressure30.18 inHg
Wind4.7 mph SE
Humidity85%
Visibility—
Dew point41°
Mon, 0252° / 35°0
52 °
Lake Cassidy, Monday, 2 November
Overcast. High 52°, low 35°.
Pressure30.18 inHg
Wind4.1 mph E
Humidity62%
Visibility—
Dew point32°
Tue, 0354° / 39°0
54 °
Lake Cassidy, Tuesday, 3 November
Overcast. High 54°, low 39°.
Pressure29.83 inHg
Wind5.1 mph E
Humidity53%
Visibility—
Dew point31°
Wed, 0451° / 45°0.35
51 °
Lake Cassidy, Wednesday, 4 November
Light rain. High 51°, low 45°.
Pressure29.88 inHg
Wind5.8 mph SE
Humidity88%
Visibility—
Dew point45°
Thu, 0549° / 47°0.83
49 °
Lake Cassidy, Thursday, 5 November
Rain. High 49°, low 47°.
Pressure29.50 inHg
Wind7 mph E
Humidity90%
Visibility—
Dew point46°
Fri, 0658° / 47°0.87
58 °
Lake Cassidy, Friday, 6 November
Rain. High 58°, low 47°.
Pressure29.59 inHg
Wind8.1 mph S
Humidity80%
Visibility—
Dew point48°
Sat, 0748° / 46°0.41
48 °
Lake Cassidy, Saturday, 7 November
Rain. High 48°, low 46°.
Pressure29.59 inHg
Wind7.1 mph SE
Humidity93%
Visibility—
Dew point46°
Sun, 0851° / 47°0.33
51 °
Lake Cassidy, Sunday, 8 November
Rain. High 51°, low 47°.
Pressure29.97 inHg
Wind10.4 mph SE
Humidity87%
Visibility—
Dew point45°
Mon, 0957° / 47°0.68
57 °
Lake Cassidy, Monday, 9 November
Rain. High 57°, low 47°.
Pressure30.06 inHg
Wind12.3 mph S
Humidity98%
Visibility—
Dew point50°
Tue, 1056° / 44°0
56 °
Lake Cassidy, Tuesday, 10 November
Overcast. High 56°, low 44°.
Pressure30.18 inHg
Wind6 mph S
Humidity80%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1150° / 40°0.29
50 °
Lake Cassidy, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.29 in
Chance of precipitation60%
Record high61° (1996)
Record low25° (1985)
Thu, 1250° / 40°0.35
50 °
Lake Cassidy, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.35 in
Chance of precipitation67%
Record high58° (1976)
Record low26° (1978)
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)
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.