Monthly outlook for Snohomish, WA: average high 58.9°, average low 43.1°. That is 2.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 9 days and 4.4 inches. The warmest day looks like 21 October (66.4°), the coolest 27 October (38.5°).
58.9°/43.1°
Average high / low
+2.6°
Above normal
4 / 9
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
59.7°
55.3°
+2.5°
30 October – 8 November
57.6°
52.2°
+3°
9 November – 18 November
at normal
49.5°
—
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 (4 mi).
Wed, 2166° / 44°0
66 °
Snohomish, Wednesday, 21 October
Clear. High 66°, low 44°.
Pressure29.94 inHg
Wind1.5 mph NW
Humidity65%
Visibility1.1 mi
Dew point47°
Thu, 2256° / 44°0
56 °
Snohomish, Thursday, 22 October
Overcast. High 56°, low 44°.
Pressure30.06 inHg
Wind8 mph NW
Humidity76%
Visibility6.2 mi
Dew point46°
Fri, 2355° / 39°0
55 °
Snohomish, Friday, 23 October
Partly cloudy. High 55°, low 39°.
Pressure30.36 inHg
Wind0.9 mph SW
Humidity72%
Visibility0.5 mi
Dew point43°
Sat, 2454° / 39°0
54 °
Snohomish, Saturday, 24 October
Overcast. High 54°, low 39°.
Pressure30.24 inHg
Wind4.4 mph NW
Humidity79%
Visibility6.2 mi
Dew point42°
Sun, 2557° / 45°0
57 °
Snohomish, Sunday, 25 October
Overcast. High 57°, low 45°.
Pressure30.21 inHg
Wind5.2 mph NW
Humidity88%
Visibility—
Dew point45°
Mon, 2663° / 39°0
63 °
Snohomish, Monday, 26 October
Mostly clear. High 63°, low 39°.
Pressure30.27 inHg
Wind4.9 mph NW
Humidity38%
Visibility—
Dew point28°
Tue, 2764° / 39°0
64 °
Snohomish, Tuesday, 27 October
Clear. High 64°, low 39°.
Pressure30.18 inHg
Wind4.6 mph NW
Humidity28%
Visibility—
Dew point21°
Wed, 2864° / 41°0
64 °
Snohomish, Wednesday, 28 October
Overcast. High 64°, low 41°.
Pressure30.06 inHg
Wind4.2 mph NW
Humidity32%
Visibility—
Dew point25°
Thu, 2960° / 42°0
60 °
Snohomish, Thursday, 29 October
Overcast. High 60°, low 42°.
Pressure29.94 inHg
Wind4 mph NW
Humidity45%
Visibility—
Dew point31°
Fri, 3065° / 42°0
65 °
Snohomish, Friday, 30 October
Overcast. High 65°, low 42°.
Pressure30.03 inHg
Wind3 mph NW
Humidity36%
Visibility—
Dew point28°
Sat, 3163° / 41°0
63 °
Snohomish, Saturday, 31 October
Overcast. High 63°, low 41°.
Pressure29.97 inHg
Wind4.3 mph NW
Humidity46%
Visibility—
Dew point33°
Sun, 0153° / 45°0.05
53 °
Snohomish, Sunday, 1 November
Light rain. High 53°, low 45°.
Pressure29.71 inHg
Wind2.9 mph NW
Humidity60%
Visibility—
Dew point38°
Mon, 0257° / 51°0.11
57 °
Snohomish, Monday, 2 November
Light rain. High 57°, low 51°.
Pressure29.80 inHg
Wind4.4 mph SE
Humidity90%
Visibility—
Dew point50°
Tue, 0356° / 51°0.48
56 °
Snohomish, Tuesday, 3 November
Rain. High 56°, low 51°.
Pressure30.03 inHg
Wind7.2 mph SE
Humidity83%
Visibility—
Dew point50°
Wed, 0452° / 45°0.44
52 °
Snohomish, Wednesday, 4 November
Rain. High 52°, low 45°.
Pressure30.06 inHg
Wind11.1 mph S
Humidity79%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0552° / 42°0.26
52 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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 °
Snohomish, 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)
Wed, 1847° / 39°0.26
47 °
Snohomish, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.26 in
Chance of precipitation60%
Record high58° (1965)
Record low23° (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 Snohomish, 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 Snohomish, 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.