Monthly outlook for Chinook, WA: average high 56.3°, average low 47.9°. That is 0.9° above the climate normal for October. Precipitation is expected on 7 days (about 4.7 inches), against a normal of 9 days and 4.8 inches. The warmest day looks like 22 October (61.7°), the coolest 23 October (39.1°).
56.3°/47.9°
Average high / low
+0.9°
Above normal
7 / 9
Wet days / normal
4.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
56.3°
55.2°
+0.6°
1 November – 10 November
56.2°
53.1°
+1.7°
11 November – 20 November
at normal
51.3°
—
October records over 66 years
81.5°15 October 2022All-time high
34.5°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Long Beach (8 mi).
Fri, 2360° / 39°0
60 °
Chinook, Friday, 23 October
Clear. High 60°, low 39°.
Pressure30.33 inHg
Wind4.2 mph NW
Humidity72%
Visibility6.2 mi
Dew point46°
Sat, 2454° / 42°0.1
54 °
Chinook, Saturday, 24 October
Rain. High 54°, low 42°.
Pressure30.18 inHg
Wind2.6 mph NW
Humidity74%
Visibility6.2 mi
Dew point42°
Sun, 2556° / 46°0.67
56 °
Chinook, Sunday, 25 October
Rain. High 56°, low 46°.
Pressure29.91 inHg
Wind12.7 mph S
Humidity89%
Visibility6.2 mi
Dew point52°
Mon, 2654° / 49°0.42
54 °
Chinook, Monday, 26 October
Rain. High 54°, low 49°.
Pressure29.94 inHg
Wind12.4 mph SE
Humidity95%
Visibility—
Dew point51°
Tue, 2755° / 43°0
55 °
Chinook, Tuesday, 27 October
Overcast. High 55°, low 43°.
Pressure30.21 inHg
Wind5.7 mph N
Humidity94%
Visibility—
Dew point49°
Wed, 2858° / 47°0
58 °
Chinook, Wednesday, 28 October
Clear. High 58°, low 47°.
Pressure30.18 inHg
Wind9.7 mph NE
Humidity82%
Visibility—
Dew point45°
Thu, 2957° / 47°0
57 °
Chinook, Thursday, 29 October
Partly cloudy. High 57°, low 47°.
Pressure29.88 inHg
Wind10 mph E
Humidity63%
Visibility—
Dew point40°
Fri, 3054° / 51°0.02
54 °
Chinook, Friday, 30 October
Light rain. High 54°, low 51°.
Pressure30.03 inHg
Wind10 mph SW
Humidity77%
Visibility—
Dew point45°
Sat, 3153° / 50°0.02
53 °
Chinook, Saturday, 31 October
Light rain. High 53°, low 50°.
Pressure30.09 inHg
Wind5.5 mph N
Humidity77%
Visibility—
Dew point45°
Sun, 0153° / 48°0
53 °
Chinook, Sunday, 1 November
Overcast. High 53°, low 48°.
Pressure30.12 inHg
Wind6.7 mph E
Humidity75%
Visibility—
Dew point43°
Mon, 0257° / 51°0
57 °
Chinook, Monday, 2 November
Overcast. High 57°, low 51°.
Pressure30.00 inHg
Wind11.9 mph E
Humidity76%
Visibility—
Dew point46°
Tue, 0361° / 49°0.2
61 °
Chinook, Tuesday, 3 November
Rain. High 61°, low 49°.
Pressure29.80 inHg
Wind27.8 mph S
Humidity57%
Visibility—
Dew point38°
Wed, 0456° / 53°0.74
56 °
Chinook, Wednesday, 4 November
Rain. High 56°, low 53°.
Pressure29.85 inHg
Wind40.5 mph S
Humidity76%
Visibility—
Dew point47°
Thu, 0555° / 53°1.96
55 °
Chinook, Thursday, 5 November
Rain. High 55°, low 53°.
Pressure29.59 inHg
Wind41.9 mph S
Humidity95%
Visibility—
Dew point53°
Fri, 0655° / 51°0.61
55 °
Chinook, Friday, 6 November
Rain. High 55°, low 51°.
Pressure29.53 inHg
Wind27.3 mph S
Humidity87%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0753° / 47°0.35
53 °
Chinook, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low47°
Average precipitation0.35 in
Chance of precipitation65%
Record high62° (2016)
Record low40° (2022)
Sun, 0852° / 46°0.26
52 °
Chinook, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.26 in
Chance of precipitation58%
Record high63° (2016)
Record low38° (2020)
Mon, 0952° / 46°0.32
52 °
Chinook, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.32 in
Chance of precipitation70%
Record high62° (2025)
Record low35° (2020)
Tue, 1052° / 46°0.26
52 °
Chinook, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.26 in
Chance of precipitation58%
Record high60° (1996)
Record low35° (1985)
Wed, 1153° / 46°0.35
53 °
Chinook, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low46°
Average precipitation0.35 in
Chance of precipitation65%
Record high61° (2016)
Record low35° (1985)
Thu, 1252° / 46°0.35
52 °
Chinook, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.35 in
Chance of precipitation63%
Record high62° (1967)
Record low33° (1985)
Fri, 1352° / 46°0.45
52 °
Chinook, Friday, 13 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.45 in
Chance of precipitation72%
Record high60° (1969)
Record low32° (1978)
Sat, 1452° / 46°0.35
52 °
Chinook, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low46°
Average precipitation0.35 in
Chance of precipitation48%
Record high60° (1995)
Record low36° (1978)
Sun, 1552° / 45°0.33
52 °
Chinook, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high52°
Average low45°
Average precipitation0.33 in
Chance of precipitation62%
Record high59° (2001)
Record low36° (1982)
Mon, 1651° / 46°0.35
51 °
Chinook, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low46°
Average precipitation0.35 in
Chance of precipitation73%
Record high58° (1965)
Record low36° (1962)
Tue, 1751° / 45°0.35
51 °
Chinook, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low45°
Average precipitation0.35 in
Chance of precipitation73%
Record high60° (1995)
Record low36° (1993)
Wed, 1850° / 45°0.28
50 °
Chinook, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high50°
Average low45°
Average precipitation0.28 in
Chance of precipitation65%
Record high56° (1968)
Record low33° (1994)
Thu, 1951° / 44°0.47
51 °
Chinook, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high51°
Average low44°
Average precipitation0.47 in
Chance of precipitation70%
Record high59° (1987)
Record low31° (2011)
Fri, 2050° / 44°0.36
50 °
Chinook, Friday, 20 November
Climate normal for this date — 60-year average.
Average high50°
Average low44°
Average precipitation0.36 in
Chance of precipitation58%
Record high59° (2002)
Record low32° (1977)
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 Chinook, 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 Chinook, 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.