Monthly outlook for Mukilteo, WA: average high 57.4°, average low 44.6°. That is 2.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 9 days and 3.6 inches. The warmest day looks like 21 October (64.5°), the coolest 27 October (39.3°).
57.4°/44.6°
Average high / low
+2.7°
Above normal
4 / 9
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
58.2°
53.4°
+2.7°
30 October – 8 November
56.1°
50.6°
+3.1°
9 November – 18 November
at normal
48.1°
—
October records over 66 years
82°16 October 2022All-time high
27.3°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Lake Stickney (3 mi).
Wed, 2165° / 44°0
65 °
Mukilteo, Wednesday, 21 October
Mostly clear. High 65°, low 44°.
Pressure29.94 inHg
Wind1.2 mph N
Humidity75%
Visibility0.2 mi
Dew point48°
Thu, 2255° / 50°0
55 °
Mukilteo, Thursday, 22 October
Overcast. High 55°, low 50°.
Pressure30.06 inHg
Wind10.2 mph NW
Humidity82%
Visibility6.2 mi
Dew point48°
Fri, 2353° / 47°0
53 °
Mukilteo, Friday, 23 October
Overcast. High 53°, low 47°.
Pressure30.36 inHg
Wind1.1 mph W
Humidity79%
Visibility0.4 mi
Dew point45°
Sat, 2451° / 43°0
51 °
Mukilteo, Saturday, 24 October
Overcast. High 51°, low 43°.
Pressure30.27 inHg
Wind8.4 mph NW
Humidity89%
Visibility—
Dew point43°
Sun, 2556° / 48°0
56 °
Mukilteo, Sunday, 25 October
Overcast. High 56°, low 48°.
Pressure30.21 inHg
Wind8.4 mph NW
Humidity80%
Visibility—
Dew point46°
Mon, 2660° / 40°0
60 °
Mukilteo, Monday, 26 October
Clear. High 60°, low 40°.
Pressure30.27 inHg
Wind5.3 mph NW
Humidity45%
Visibility—
Dew point31°
Tue, 2761° / 39°0
61 °
Mukilteo, Tuesday, 27 October
Clear. High 61°, low 39°.
Pressure30.18 inHg
Wind4.6 mph N
Humidity34%
Visibility—
Dew point25°
Wed, 2862° / 41°0
62 °
Mukilteo, Wednesday, 28 October
Overcast. High 62°, low 41°.
Pressure30.06 inHg
Wind4.5 mph NW
Humidity35%
Visibility—
Dew point26°
Thu, 2958° / 43°0
58 °
Mukilteo, Thursday, 29 October
Overcast. High 58°, low 43°.
Pressure29.94 inHg
Wind4.8 mph NW
Humidity54%
Visibility—
Dew point36°
Fri, 3063° / 43°0
63 °
Mukilteo, Friday, 30 October
Overcast. High 63°, low 43°.
Pressure30.03 inHg
Wind4 mph NW
Humidity40%
Visibility—
Dew point30°
Sat, 3160° / 42°0
60 °
Mukilteo, Saturday, 31 October
Overcast. High 60°, low 42°.
Pressure29.97 inHg
Wind5.6 mph NW
Humidity50%
Visibility—
Dew point35°
Sun, 0152° / 45°0.05
52 °
Mukilteo, Sunday, 1 November
Light rain. High 52°, low 45°.
Pressure29.71 inHg
Wind3.3 mph SE
Humidity66%
Visibility—
Dew point40°
Mon, 0257° / 50°0.04
57 °
Mukilteo, Monday, 2 November
Light rain. High 57°, low 50°.
Pressure29.80 inHg
Wind5.7 mph SE
Humidity89%
Visibility—
Dew point49°
Tue, 0355° / 51°0.35
55 °
Mukilteo, Tuesday, 3 November
Rain. High 55°, low 51°.
Pressure30.03 inHg
Wind8.8 mph S
Humidity85%
Visibility—
Dew point50°
Wed, 0451° / 45°0.44
51 °
Mukilteo, Wednesday, 4 November
Rain. High 51°, low 45°.
Pressure30.06 inHg
Wind13.8 mph S
Humidity77%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0551° / 41°0.2
51 °
Mukilteo, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.2 in
Chance of precipitation58%
Record high62° (1997)
Record low26° (1973)
Fri, 0649° / 41°0.28
49 °
Mukilteo, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.28 in
Chance of precipitation65%
Record high56° (2014)
Record low28° (2003)
Sat, 0750° / 42°0.26
50 °
Mukilteo, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.26 in
Chance of precipitation67%
Record high59° (2016)
Record low31° (2003)
Sun, 0849° / 40°0.2
49 °
Mukilteo, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.2 in
Chance of precipitation53%
Record high63° (2016)
Record low33° (1982)
Mon, 0949° / 41°0.22
49 °
Mukilteo, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.22 in
Chance of precipitation62%
Record high60° (2025)
Record low30° (2020)
Tue, 1049° / 40°0.2
49 °
Mukilteo, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.2 in
Chance of precipitation47%
Record high61° (2016)
Record low28° (1986)
Wed, 1149° / 40°0.23
49 °
Mukilteo, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.23 in
Chance of precipitation60%
Record high58° (1996)
Record low27° (1985)
Thu, 1249° / 40°0.28
49 °
Mukilteo, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.28 in
Chance of precipitation65%
Record high56° (2025)
Record low25° (1985)
Fri, 1349° / 40°0.3
49 °
Mukilteo, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.3 in
Chance of precipitation60%
Record high60° (1967)
Record low26° (2014)
Sat, 1449° / 40°0.27
49 °
Mukilteo, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.27 in
Chance of precipitation58%
Record high60° (1969)
Record low27° (1964)
Sun, 1548° / 40°0.26
48 °
Mukilteo, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.26 in
Chance of precipitation63%
Record high57° (2021)
Record low28° (2014)
Mon, 1647° / 40°0.25
47 °
Mukilteo, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low40°
Average precipitation0.25 in
Chance of precipitation73%
Record high58° (1965)
Record low28° (2014)
Tue, 1747° / 39°0.26
47 °
Mukilteo, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.26 in
Chance of precipitation62%
Record high57° (2008)
Record low27° (2021)
Wed, 1846° / 38°0.2
46 °
Mukilteo, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.2 in
Chance of precipitation58%
Record high56° (1965)
Record low25° (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 Mukilteo, 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 Mukilteo, 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.