Monthly outlook for Hyak, WA: average high 46.5°, average low 32.9°. That is 0.2° above the climate normal for October. Precipitation is expected on 7 days (about 10.0 inches), against a normal of 10 days and 5.8 inches. The warmest day looks like 30 October (54.2°), the coolest 24 October (23.3°).
46.5°/32.9°
Average high / low
+0.2°
Above normal
7 / 10
Wet days / normal
10.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
48.3°
47.1°
+0.7°
2 November – 11 November
43.4°
43.5°
-0°
12 November – 21 November
at normal
39.5°
—
October records over 66 years
80.6°1 October 1987All-time high
2.1°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Snoqualmie Pass (1 mi).
Sat, 2442° / 23°0
42 °
Hyak, Saturday, 24 October
Overcast. High 42°, low 23°.
Pressure30.15 inHg
Wind3.2 mph SE
Humidity50%
Visibility6.2 mi
Dew point20°
Sun, 2550° / 33°0
50 °
Hyak, Sunday, 25 October
Overcast. High 50°, low 33°.
Pressure29.97 inHg
Wind10.3 mph SE
Humidity52%
Visibility6.2 mi
Dew point28°
Mon, 2645° / 37°0.33
45 °
Hyak, Monday, 26 October
Rain. High 45°, low 37°.
Pressure30.03 inHg
Wind3.7 mph W
Humidity95%
Visibility4.9 mi
Dew point40°
Tue, 2739° / 32°0.12
39 °
Hyak, Tuesday, 27 October
Light rain. High 39°, low 32°.
Pressure30.15 inHg
Wind3.6 mph NW
Humidity100%
Visibility—
Dew point38°
Wed, 2850° / 30°0
50 °
Hyak, Wednesday, 28 October
Mostly clear. High 50°, low 30°.
Pressure30.09 inHg
Wind5.5 mph E
Humidity77%
Visibility—
Dew point36°
Thu, 2953° / 34°0
53 °
Hyak, Thursday, 29 October
Clear. High 53°, low 34°.
Pressure30.12 inHg
Wind6 mph E
Humidity36%
Visibility—
Dew point21°
Fri, 3054° / 33°0
54 °
Hyak, Friday, 30 October
Mostly clear. High 54°, low 33°.
Pressure29.94 inHg
Wind5.4 mph E
Humidity33%
Visibility—
Dew point19°
Sat, 3153° / 32°0
53 °
Hyak, Saturday, 31 October
Clear. High 53°, low 32°.
Pressure29.91 inHg
Wind5.9 mph E
Humidity40%
Visibility—
Dew point22°
Sun, 0154° / 33°0
54 °
Hyak, Sunday, 1 November
Clear. High 54°, low 33°.
Pressure29.77 inHg
Wind5.7 mph E
Humidity39%
Visibility—
Dew point22°
Mon, 0252° / 32°0
52 °
Hyak, Monday, 2 November
Clear. High 52°, low 32°.
Pressure29.80 inHg
Wind5 mph E
Humidity38%
Visibility—
Dew point22°
Tue, 0337° / 34°0.44
37 °
Hyak, Tuesday, 3 November
Snow. High 37°, low 34°.
Pressure29.94 inHg
Wind4.3 mph W
Humidity98%
Visibility—
Dew point35°
Wed, 0438° / 31°0.81
38 °
Hyak, Wednesday, 4 November
Snow. High 38°, low 31°.
Pressure29.88 inHg
Wind5.1 mph E
Humidity98%
Visibility—
Dew point33°
Thu, 0544° / 31°4.43
44 °
Hyak, Thursday, 5 November
Snow. High 44°, low 31°.
Pressure29.35 inHg
Wind16.8 mph SW
Humidity100%
Visibility—
Dew point33°
Fri, 0646° / 42°2.04
46 °
Hyak, Friday, 6 November
Heavy rain. High 46°, low 42°.
Pressure29.62 inHg
Wind21.5 mph SW
Humidity95%
Visibility—
Dew point45°
Sat, 0743° / 40°1.81
43 °
Hyak, Saturday, 7 November
Rain. High 43°, low 40°.
Pressure29.68 inHg
Wind6.1 mph E
Humidity98%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0843° / 32°0.34
43 °
Hyak, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.34 in
Chance of precipitation60%
Record high61° (2016)
Record low19° (1977)
Mon, 0942° / 32°0.35
42 °
Hyak, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.35 in
Chance of precipitation67%
Record high55° (1976)
Record low11° (1982)
Tue, 1042° / 31°0.32
42 °
Hyak, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.32 in
Chance of precipitation57%
Record high57° (2016)
Record low8° (1986)
Wed, 1142° / 31°0.36
42 °
Hyak, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.36 in
Chance of precipitation63%
Record high57° (2016)
Record low3° (1985)
Thu, 1242° / 32°0.43
42 °
Hyak, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.43 in
Chance of precipitation68%
Record high56° (1990)
Record low4° (1985)
Fri, 1341° / 31°0.47
41 °
Hyak, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.47 in
Chance of precipitation67%
Record high58° (1969)
Record low13° (1985)
Sat, 1441° / 31°0.39
41 °
Hyak, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.39 in
Chance of precipitation63%
Record high59° (1969)
Record low5° (1985)
Sun, 1541° / 30°0.38
41 °
Hyak, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.38 in
Chance of precipitation70%
Record high57° (2008)
Record low9° (2000)
Mon, 1640° / 31°0.43
40 °
Hyak, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low31°
Average precipitation0.43 in
Chance of precipitation73%
Record high58° (2008)
Record low9° (2000)
Tue, 1739° / 30°0.44
39 °
Hyak, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low30°
Average precipitation0.44 in
Chance of precipitation65%
Record high58° (2008)
Record low8° (2000)
Wed, 1838° / 29°0.33
38 °
Hyak, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low29°
Average precipitation0.33 in
Chance of precipitation62%
Record high51° (2005)
Record low9° (1975)
Thu, 1938° / 29°0.44
38 °
Hyak, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low29°
Average precipitation0.44 in
Chance of precipitation73%
Record high48° (1967)
Record low10° (1977)
Fri, 2038° / 28°0.37
38 °
Hyak, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.37 in
Chance of precipitation65%
Record high56° (2002)
Record low2° (1977)
Sat, 2137° / 28°0.34
37 °
Hyak, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low28°
Average precipitation0.34 in
Chance of precipitation57%
Record high53° (2002)
Record low4° (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 Hyak, 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 Hyak, 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.