Monthly outlook for Copalis Beach, WA: average high 52.9°, average low 46.1°. That is 0.4° below the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 9 days and 6.7 inches. The warmest day looks like 2 November (57.3°), the coolest 31 October (41.7°).
52.9°/46.1°
Average high / low
−0.4°
Below normal
5 / 9
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
53.8°
54.4°
-0.4°
28 October – 6 November
51.4°
52.2°
-0.4°
7 November – 16 November
at normal
50.3°
—
October records over 66 years
76.3°15 October 2022All-time high
26.8°30 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Santiago (13 mi).
Mon, 1955° / 48°0
55 °
Copalis Beach, Monday, 19 October
Partly cloudy. High 55°, low 48°.
Pressure29.97 inHg
Wind2.2 mph S
Humidity67%
Visibility6.2 mi
Dew point44°
Tue, 2054° / 42°0
54 °
Copalis Beach, Tuesday, 20 October
Partly cloudy. High 54°, low 42°.
Pressure30.06 inHg
Wind4.5 mph NW
Humidity77%
Visibility2.9 mi
Dew point45°
Wed, 2153° / 44°0
53 °
Copalis Beach, Wednesday, 21 October
Overcast. High 53°, low 44°.
Pressure29.97 inHg
Wind4.9 mph NW
Humidity80%
Visibility0.6 mi
Dew point48°
Thu, 2254° / 51°0.01
54 °
Copalis Beach, Thursday, 22 October
Light rain. High 54°, low 51°.
Pressure29.97 inHg
Wind12.4 mph NW
Humidity81%
Visibility6.2 mi
Dew point48°
Fri, 2353° / 49°0
53 °
Copalis Beach, Friday, 23 October
Light rain. High 53°, low 49°.
Pressure30.33 inHg
Wind19 mph NW
Humidity70%
Visibility—
Dew point44°
Sat, 2453° / 47°0.05
53 °
Copalis Beach, Saturday, 24 October
Light rain. High 53°, low 47°.
Pressure30.27 inHg
Wind11.9 mph S
Humidity63%
Visibility—
Dew point39°
Sun, 2555° / 50°0.32
55 °
Copalis Beach, Sunday, 25 October
Rain. High 55°, low 50°.
Pressure30.12 inHg
Wind14.4 mph SW
Humidity85%
Visibility—
Dew point49°
Mon, 2651° / 47°0
51 °
Copalis Beach, Monday, 26 October
Clear. High 51°, low 47°.
Pressure30.06 inHg
Wind7.8 mph E
Humidity76%
Visibility—
Dew point42°
Tue, 2753° / 45°0.01
53 °
Copalis Beach, Tuesday, 27 October
Light rain. High 53°, low 45°.
Pressure30.06 inHg
Wind5.8 mph E
Humidity79%
Visibility—
Dew point43°
Wed, 2852° / 51°0.12
52 °
Copalis Beach, Wednesday, 28 October
Light rain. High 52°, low 51°.
Pressure30.03 inHg
Wind15.9 mph NW
Humidity67%
Visibility—
Dew point41°
Thu, 2949° / 44°0
49 °
Copalis Beach, Thursday, 29 October
Overcast. High 49°, low 44°.
Pressure30.12 inHg
Wind9.1 mph N
Humidity70%
Visibility—
Dew point39°
Fri, 3050° / 43°0
50 °
Copalis Beach, Friday, 30 October
Clear. High 50°, low 43°.
Pressure30.24 inHg
Wind9 mph E
Humidity55%
Visibility—
Dew point33°
Sat, 3149° / 42°0
49 °
Copalis Beach, Saturday, 31 October
Overcast. High 49°, low 42°.
Pressure30.06 inHg
Wind11.3 mph E
Humidity59%
Visibility—
Dew point34°
Sun, 0151° / 45°0.34
51 °
Copalis Beach, Sunday, 1 November
Rain. High 51°, low 45°.
Pressure29.65 inHg
Wind20.4 mph E
Humidity62%
Visibility—
Dew point38°
Mon, 0257° / 46°0.93
57 °
Copalis Beach, Monday, 2 November
Rain. High 57°, low 46°.
Pressure29.59 inHg
Wind27.8 mph S
Humidity98%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0352° / 45°0.56
52 °
Copalis Beach, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low45°
Average precipitation0.56 in
Chance of precipitation62%
Record high66° (2010)
Record low35° (1994)
Wed, 0452° / 45°0.59
52 °
Copalis Beach, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low45°
Average precipitation0.59 in
Chance of precipitation68%
Record high60° (1980)
Record low33° (1973)
Thu, 0551° / 44°0.44
51 °
Copalis Beach, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.44 in
Chance of precipitation72%
Record high60° (1960)
Record low30° (1973)
Fri, 0651° / 44°0.61
51 °
Copalis Beach, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.61 in
Chance of precipitation72%
Record high62° (1976)
Record low34° (1973)
Sat, 0751° / 44°0.55
51 °
Copalis Beach, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.55 in
Chance of precipitation70%
Record high59° (2019)
Record low35° (2019)
Sun, 0851° / 44°0.45
51 °
Copalis Beach, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.45 in
Chance of precipitation67%
Record high61° (2016)
Record low35° (2018)
Mon, 0950° / 43°0.58
50 °
Copalis Beach, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.58 in
Chance of precipitation68%
Record high61° (2025)
Record low29° (2022)
Tue, 1051° / 43°0.44
51 °
Copalis Beach, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.44 in
Chance of precipitation60%
Record high61° (1996)
Record low32° (2022)
Wed, 1151° / 43°0.58
51 °
Copalis Beach, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.58 in
Chance of precipitation70%
Record high59° (1976)
Record low31° (2018)
Thu, 1250° / 44°0.61
50 °
Copalis Beach, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.61 in
Chance of precipitation70%
Record high60° (1967)
Record low32° (1985)
Fri, 1350° / 44°0.6
50 °
Copalis Beach, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.6 in
Chance of precipitation68%
Record high60° (1967)
Record low31° (1985)
Sat, 1450° / 43°0.48
50 °
Copalis Beach, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low43°
Average precipitation0.48 in
Chance of precipitation62%
Record high59° (1965)
Record low29° (2023)
Sun, 1550° / 42°0.62
50 °
Copalis Beach, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.62 in
Chance of precipitation68%
Record high57° (1997)
Record low28° (2022)
Mon, 1649° / 42°0.57
49 °
Copalis Beach, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low42°
Average precipitation0.57 in
Chance of precipitation77%
Record high58° (1965)
Record low29° (2023)
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 Copalis Beach, 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 Copalis Beach, 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.