Monthly outlook for Hat Island, WA: average high 57.8°, average low 46.2°. That is 1.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 9 days and 4.3 inches. The warmest day looks like 31 October (62°), the coolest 26 October (43.3°).
57.8°/46.2°
Average high / low
+1.7°
Above normal
4 / 9
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
56.6°
55.7°
+0.5°
29 October – 7 November
59.7°
52.4°
+4°
8 November – 17 November
at normal
49.9°
—
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).
Tue, 2057° / 46°0
57 °
Hat Island, Tuesday, 20 October
Partly cloudy. High 57°, low 46°.
Pressure30.09 inHg
Wind6.9 mph NW
Humidity82%
Visibility4.4 mi
Dew point48°
Wed, 2158° / 45°0
58 °
Hat Island, Wednesday, 21 October
Mostly clear. High 58°, low 45°.
Pressure29.97 inHg
Wind0.8 mph SE
Humidity76%
Visibility1.0 mi
Dew point48°
Thu, 2255° / 47°0
55 °
Hat Island, Thursday, 22 October
Overcast. High 55°, low 47°.
Pressure29.94 inHg
Wind5.8 mph NW
Humidity82%
Visibility3.0 mi
Dew point47°
Fri, 2353° / 48°0.01
53 °
Hat Island, Friday, 23 October
Light rain. High 53°, low 48°.
Pressure30.30 inHg
Wind3.6 mph S
Humidity82%
Visibility4.7 mi
Dew point45°
Sat, 2449° / 46°0.26
49 °
Hat Island, Saturday, 24 October
Rain. High 49°, low 46°.
Pressure30.06 inHg
Wind8.5 mph E
Humidity76%
Visibility—
Dew point40°
Sun, 2559° / 45°0.05
59 °
Hat Island, Sunday, 25 October
Light rain. High 59°, low 45°.
Pressure30.21 inHg
Wind5.1 mph NW
Humidity55%
Visibility—
Dew point38°
Mon, 2657° / 43°0
57 °
Hat Island, Monday, 26 October
Mostly clear. High 57°, low 43°.
Pressure30.21 inHg
Wind9.5 mph NW
Humidity56%
Visibility—
Dew point38°
Tue, 2758° / 46°0
58 °
Hat Island, Tuesday, 27 October
Clear. High 58°, low 46°.
Pressure30.15 inHg
Wind7.1 mph NW
Humidity67%
Visibility—
Dew point43°
Wed, 2861° / 44°0
61 °
Hat Island, Wednesday, 28 October
Overcast. High 61°, low 44°.
Pressure30.00 inHg
Wind4.7 mph NW
Humidity64%
Visibility—
Dew point42°
Thu, 2960° / 46°0
60 °
Hat Island, Thursday, 29 October
Overcast. High 60°, low 46°.
Pressure29.94 inHg
Wind3.4 mph NW
Humidity55%
Visibility—
Dew point39°
Fri, 3059° / 47°0
59 °
Hat Island, Friday, 30 October
Overcast. High 59°, low 47°.
Pressure29.97 inHg
Wind3.5 mph NW
Humidity58%
Visibility—
Dew point40°
Sat, 3162° / 48°0
62 °
Hat Island, Saturday, 31 October
Overcast. High 62°, low 48°.
Pressure30.12 inHg
Wind4.6 mph SW
Humidity57%
Visibility—
Dew point40°
Sun, 0160° / 46°0
60 °
Hat Island, Sunday, 1 November
Overcast. High 60°, low 46°.
Pressure30.06 inHg
Wind3.1 mph NW
Humidity60%
Visibility—
Dew point41°
Mon, 0261° / 49°0.6
61 °
Hat Island, Monday, 2 November
Rain. High 61°, low 49°.
Pressure29.53 inHg
Wind23.3 mph S
Humidity88%
Visibility—
Dew point49°
Tue, 0356° / 48°0.2
56 °
Hat Island, Tuesday, 3 November
Light rain. High 56°, low 48°.
Pressure29.80 inHg
Wind11.1 mph S
Humidity77%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1450° / 40°0.31
50 °
Hat Island, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.31 in
Chance of precipitation58%
Record high62° (1999)
Record low27° (1978)
Sun, 1549° / 40°0.34
49 °
Hat Island, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.34 in
Chance of precipitation70%
Record high58° (2008)
Record low29° (2014)
Mon, 1648° / 40°0.33
48 °
Hat Island, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.33 in
Chance of precipitation75%
Record high61° (1965)
Record low29° (2022)
Tue, 1748° / 39°0.31
48 °
Hat Island, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low39°
Average precipitation0.31 in
Chance of precipitation68%
Record high60° (2008)
Record low26° (2021)
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.