Monthly outlook for Hyak, WA: average high 40.9°, average low 29.9°. That is 1.9° below the climate normal for October. Precipitation is expected on 8 days (about 4.4 inches), against a normal of 10 days and 5.9 inches. The warmest day looks like 6 November (48.8°), the coolest 31 October (20.1°).
40.9°/29.9°
Average high / low
−1.9°
Below normal
8 / 10
Wet days / normal
4.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
40.3°
45.5°
-2.9°
6 November – 15 November
41.9°
41.9°
+0°
16 November – 25 November
at normal
37.6°
—
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).
Wed, 2839° / 24°0.77
39 °
Hyak, Wednesday, 28 October
Snow. High 39°, low 24°.
Pressure30.03 inHg
Wind6.9 mph SW
Humidity92%
Visibility0.9 mi
Dew point30°
Thu, 2939° / 22°0
39 °
Hyak, Thursday, 29 October
Mostly clear. High 39°, low 22°.
Pressure30.00 inHg
Wind7.8 mph SE
Humidity73%
Visibility6.2 mi
Dew point25°
Fri, 3037° / 21°0.55
37 °
Hyak, Friday, 30 October
Snow. High 37°, low 21°.
Pressure29.94 inHg
Wind1.9 mph SW
Humidity87%
Visibility6.2 mi
Dew point30°
Sat, 3141° / 20°0
41 °
Hyak, Saturday, 31 October
Clear. High 41°, low 20°.
Pressure30.00 inHg
Wind5.9 mph E
Humidity74%
Visibility—
Dew point28°
Sun, 0136° / 24°0
36 °
Hyak, Sunday, 1 November
Partly cloudy. High 36°, low 24°.
Pressure30.21 inHg
Wind4.3 mph E
Humidity82%
Visibility—
Dew point29°
Mon, 0238° / 23°0
38 °
Hyak, Monday, 2 November
Overcast. High 38°, low 23°.
Pressure30.47 inHg
Wind8.7 mph E
Humidity94%
Visibility—
Dew point32°
Tue, 0341° / 31°0
41 °
Hyak, Tuesday, 3 November
Overcast. High 41°, low 31°.
Pressure30.27 inHg
Wind9.8 mph E
Humidity88%
Visibility—
Dew point33°
Wed, 0442° / 31°0
42 °
Hyak, Wednesday, 4 November
Overcast. High 42°, low 31°.
Pressure30.09 inHg
Wind6.9 mph E
Humidity76%
Visibility—
Dew point33°
Thu, 0548° / 35°0
48 °
Hyak, Thursday, 5 November
Overcast. High 48°, low 35°.
Pressure30.09 inHg
Wind6.2 mph E
Humidity75%
Visibility—
Dew point36°
Fri, 0649° / 36°0
49 °
Hyak, Friday, 6 November
Overcast. High 49°, low 36°.
Pressure29.94 inHg
Wind8.2 mph E
Humidity72%
Visibility—
Dew point35°
Sat, 0748° / 37°0.09
48 °
Hyak, Saturday, 7 November
Light rain. High 48°, low 37°.
Pressure29.77 inHg
Wind8.1 mph E
Humidity66%
Visibility—
Dew point37°
Sun, 0840° / 37°0.62
40 °
Hyak, Sunday, 8 November
Rain. High 40°, low 37°.
Pressure30.00 inHg
Wind4.3 mph W
Humidity95%
Visibility—
Dew point38°
Mon, 0942° / 34°0.59
42 °
Hyak, Monday, 9 November
Rain. High 42°, low 34°.
Pressure30.12 inHg
Wind6.4 mph E
Humidity98%
Visibility—
Dew point37°
Tue, 1038° / 34°0.65
38 °
Hyak, Tuesday, 10 November
Rain. High 38°, low 34°.
Pressure30.00 inHg
Wind4.5 mph E
Humidity99%
Visibility—
Dew point35°
Wed, 1134° / 33°0.68
34 °
Hyak, Wednesday, 11 November
Rain. High 34°, low 33°.
Pressure29.83 inHg
Wind7 mph E
Humidity99%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 2236° / 27°0.37
36 °
Hyak, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low27°
Average precipitation0.37 in
Chance of precipitation63%
Record high50° (2002)
Record low-2° (1970)
Mon, 2337° / 27°0.56
37 °
Hyak, Monday, 23 November
Climate normal for this date — 60-year average.
Average high37°
Average low27°
Average precipitation0.56 in
Chance of precipitation73%
Record high53° (1976)
Record low-10° (1985)
Tue, 2437° / 27°0.52
37 °
Hyak, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high37°
Average low27°
Average precipitation0.52 in
Chance of precipitation68%
Record high50° (1995)
Record low-3° (1985)
Wed, 2537° / 28°0.56
37 °
Hyak, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high37°
Average low28°
Average precipitation0.56 in
Chance of precipitation75%
Record high47° (2002)
Record low0° (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 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.