Monthly outlook for Hat Island, WA: average high 58.1°, average low 46.9°. That is 1.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 8 days and 3.9 inches. The warmest day looks like 29 October (64.2°), the coolest 24 October (39.6°).
58.1°/46.9°
Average high / low
+1.2°
Above normal
2 / 8
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
57.5°
57.3°
+0.1°
25 October – 3 November
59.1°
53.4°
+3.1°
4 November – 13 November
at normal
51.1°
—
October records over 66 years
84.7°16 October 2022All-time high
26.6°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Everett (8 mi).
Fri, 1664° / 47°0
64 °
Hat Island, Friday, 16 October
Overcast. High 64°, low 47°.
Pressure30.15 inHg
Wind4.7 mph SE
Humidity49%
Visibility6.2 mi
Dew point44°
Sat, 1758° / 52°0.09
58 °
Hat Island, Saturday, 17 October
Rain. High 58°, low 52°.
Pressure30.24 inHg
Wind14.2 mph NW
Humidity70%
Visibility6.2 mi
Dew point48°
Sun, 1854° / 47°0
54 °
Hat Island, Sunday, 18 October
Overcast. High 54°, low 47°.
Pressure30.09 inHg
Wind6 mph NW
Humidity83%
Visibility0.4 mi
Dew point46°
Mon, 1958° / 50°0
58 °
Hat Island, Monday, 19 October
Mostly clear. High 58°, low 50°.
Pressure29.94 inHg
Wind11.8 mph SE
Humidity72%
Visibility—
Dew point45°
Tue, 2058° / 46°0
58 °
Hat Island, Tuesday, 20 October
Clear. High 58°, low 46°.
Pressure30.00 inHg
Wind11.6 mph NW
Humidity81%
Visibility—
Dew point49°
Wed, 2160° / 42°0
60 °
Hat Island, Wednesday, 21 October
Partly cloudy. High 60°, low 42°.
Pressure29.97 inHg
Wind4.8 mph SE
Humidity62%
Visibility—
Dew point39°
Thu, 2256° / 44°0.04
56 °
Hat Island, Thursday, 22 October
Light rain. High 56°, low 44°.
Pressure30.09 inHg
Wind7.6 mph NW
Humidity83%
Visibility—
Dew point47°
Fri, 2355° / 43°0.01
55 °
Hat Island, Friday, 23 October
Light rain. High 55°, low 43°.
Pressure30.50 inHg
Wind5 mph SE
Humidity76%
Visibility—
Dew point42°
Sat, 2456° / 40°0
56 °
Hat Island, Saturday, 24 October
Mostly clear. High 56°, low 40°.
Pressure30.59 inHg
Wind4.6 mph NW
Humidity54%
Visibility—
Dew point34°
Sun, 2556° / 48°0
56 °
Hat Island, Sunday, 25 October
Overcast. High 56°, low 48°.
Pressure30.47 inHg
Wind4.9 mph NW
Humidity60%
Visibility—
Dew point40°
Mon, 2656° / 46°0
56 °
Hat Island, Monday, 26 October
Overcast. High 56°, low 46°.
Pressure30.50 inHg
Wind7.8 mph NW
Humidity74%
Visibility—
Dew point44°
Tue, 2759° / 46°0
59 °
Hat Island, Tuesday, 27 October
Overcast. High 59°, low 46°.
Pressure30.24 inHg
Wind4.7 mph NW
Humidity67%
Visibility—
Dew point44°
Wed, 2859° / 49°0
59 °
Hat Island, Wednesday, 28 October
Overcast. High 59°, low 49°.
Pressure30.12 inHg
Wind4.7 mph S
Humidity72%
Visibility—
Dew point46°
Thu, 2964° / 49°0
64 °
Hat Island, Thursday, 29 October
Overcast. High 64°, low 49°.
Pressure30.09 inHg
Wind4.5 mph SE
Humidity73%
Visibility—
Dew point48°
Fri, 3059° / 53°0
59 °
Hat Island, Friday, 30 October
Overcast. High 59°, low 53°.
Pressure30.00 inHg
Wind15.1 mph S
Humidity66%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 42°0.34
52 °
Hat Island, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.34 in
Chance of precipitation67%
Record high63° (1964)
Record low27° (1984)
Sun, 0153° / 42°0.31
53 °
Hat Island, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.31 in
Chance of precipitation50%
Record high65° (1969)
Record low31° (2002)
Mon, 0253° / 42°0.25
53 °
Hat Island, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.25 in
Chance of precipitation58%
Record high67° (1962)
Record low31° (2002)
Tue, 0353° / 42°0.32
53 °
Hat Island, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.32 in
Chance of precipitation63%
Record high66° (2010)
Record low29° (2003)
Wed, 0453° / 42°0.38
53 °
Hat Island, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.38 in
Chance of precipitation62%
Record high67° (1980)
Record low30° (2003)
Thu, 0552° / 42°0.26
52 °
Hat Island, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.26 in
Chance of precipitation67%
Record high65° (1997)
Record low25° (1973)
Fri, 0651° / 42°0.33
51 °
Hat Island, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.33 in
Chance of precipitation65%
Record high59° (1979)
Record low27° (2003)
Sat, 0751° / 42°0.33
51 °
Hat Island, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.33 in
Chance of precipitation72%
Record high61° (2016)
Record low31° (2003)
Sun, 0851° / 41°0.28
51 °
Hat Island, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.28 in
Chance of precipitation58%
Record high67° (2016)
Record low31° (2022)
Mon, 0950° / 41°0.26
50 °
Hat Island, Monday, 9 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.26 in
Chance of precipitation63%
Record high62° (2025)
Record low28° (2022)
Tue, 1051° / 41°0.25
51 °
Hat Island, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.25 in
Chance of precipitation48%
Record high64° (2016)
Record low28° (1986)
Wed, 1151° / 41°0.29
51 °
Hat Island, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.29 in
Chance of precipitation60%
Record high61° (1996)
Record low26° (1985)
Thu, 1250° / 41°0.35
50 °
Hat Island, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.35 in
Chance of precipitation67%
Record high58° (1976)
Record low26° (1985)
Fri, 1350° / 40°0.36
50 °
Hat Island, 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 low27° (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 Hat Island, 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 Hat Island, 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.