Monthly outlook for Langley, WA: average high 57.5°, average low 48.3°. That is 0.1° below the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 8 days and 3.5 inches. The warmest day looks like 16 October (63.1°), the coolest 11 October (46°).
57.5°/48.3°
Average high / low
−0.1°
Below normal
2 / 8
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
58°
58.5°
-0.3°
19 October – 28 October
56.6°
55.4°
+0.6°
29 October – 7 November
at normal
52.1°
—
October records over 66 years
84.2°1 October 1987All-time high
25.9°29 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Marysville (12 mi).
Sat, 1060° / 48°0.09
60 °
Langley, Saturday, 10 October
Rain. High 60°, low 48°.
Pressure29.88 inHg
Wind1.5 mph NW
Humidity77%
Visibility6.2 mi
Dew point45°
Sun, 1156° / 46°0
56 °
Langley, Sunday, 11 October
Clear. High 56°, low 46°.
Pressure30.03 inHg
Wind7.8 mph NW
Humidity64%
Visibility6.2 mi
Dew point41°
Mon, 1256° / 47°0
56 °
Langley, Monday, 12 October
Clear. High 56°, low 47°.
Pressure30.09 inHg
Wind3 mph S
Humidity67%
Visibility6.2 mi
Dew point43°
Tue, 1357° / 46°0
57 °
Langley, Tuesday, 13 October
Overcast. High 57°, low 46°.
Pressure30.15 inHg
Wind4.6 mph SE
Humidity74%
Visibility—
Dew point43°
Wed, 1460° / 53°0
60 °
Langley, Wednesday, 14 October
Overcast. High 60°, low 53°.
Pressure30.24 inHg
Wind11 mph SE
Humidity83%
Visibility—
Dew point51°
Thu, 1556° / 50°0
56 °
Langley, Thursday, 15 October
Overcast. High 56°, low 50°.
Pressure30.30 inHg
Wind10.6 mph NW
Humidity83%
Visibility—
Dew point49°
Fri, 1663° / 49°0
63 °
Langley, Friday, 16 October
Overcast. High 63°, low 49°.
Pressure30.30 inHg
Wind7.5 mph NW
Humidity65%
Visibility—
Dew point44°
Sat, 1754° / 50°0
54 °
Langley, Saturday, 17 October
Overcast. High 54°, low 50°.
Pressure30.21 inHg
Wind10 mph NW
Humidity80%
Visibility—
Dew point47°
Sun, 1856° / 47°0
56 °
Langley, Sunday, 18 October
Partly cloudy. High 56°, low 47°.
Pressure30.06 inHg
Wind10.1 mph NW
Humidity74%
Visibility—
Dew point44°
Mon, 1954° / 50°0
54 °
Langley, Monday, 19 October
Overcast. High 54°, low 50°.
Pressure30.15 inHg
Wind2.8 mph SE
Humidity71%
Visibility—
Dew point43°
Tue, 2058° / 47°0
58 °
Langley, Tuesday, 20 October
Partly cloudy. High 58°, low 47°.
Pressure30.30 inHg
Wind5.2 mph SE
Humidity78%
Visibility—
Dew point46°
Wed, 2157° / 49°0
57 °
Langley, Wednesday, 21 October
Overcast. High 57°, low 49°.
Pressure30.24 inHg
Wind8.5 mph NW
Humidity68%
Visibility—
Dew point44°
Thu, 2253° / 48°0
53 °
Langley, Thursday, 22 October
Overcast. High 53°, low 48°.
Pressure30.21 inHg
Wind8.5 mph NW
Humidity77%
Visibility—
Dew point44°
Fri, 2356° / 47°0
56 °
Langley, Friday, 23 October
Mostly clear. High 56°, low 47°.
Pressure30.00 inHg
Wind6.6 mph NW
Humidity64%
Visibility—
Dew point41°
Sat, 2461° / 48°0
61 °
Langley, Saturday, 24 October
Clear. High 61°, low 48°.
Pressure29.94 inHg
Wind5.4 mph NW
Humidity53%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 44°0.24
55 °
Langley, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.24 in
Chance of precipitation55%
Record high66° (1965)
Record low31° (2020)
Mon, 2654° / 43°0.32
54 °
Langley, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.32 in
Chance of precipitation53%
Record high69° (1965)
Record low30° (1970)
Tue, 2754° / 42°0.26
54 °
Langley, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.26 in
Chance of precipitation47%
Record high66° (1962)
Record low28° (1971)
Wed, 2853° / 42°0.29
53 °
Langley, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.29 in
Chance of precipitation60%
Record high68° (1962)
Record low26° (1971)
Thu, 2953° / 42°0.19
53 °
Langley, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.19 in
Chance of precipitation55%
Record high69° (1962)
Record low26° (1991)
Fri, 3053° / 42°0.27
53 °
Langley, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.27 in
Chance of precipitation55%
Record high62° (1987)
Record low28° (1991)
Sat, 3152° / 42°0.34
52 °
Langley, 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° / 41°0.31
53 °
Langley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.31 in
Chance of precipitation50%
Record high65° (1969)
Record low30° (2002)
Mon, 0253° / 41°0.26
53 °
Langley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.26 in
Chance of precipitation58%
Record high66° (1962)
Record low30° (2002)
Tue, 0352° / 42°0.32
52 °
Langley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.32 in
Chance of precipitation63%
Record high66° (2010)
Record low30° (2002)
Wed, 0453° / 42°0.38
53 °
Langley, 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° / 41°0.24
52 °
Langley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.24 in
Chance of precipitation67%
Record high64° (1997)
Record low25° (1973)
Fri, 0651° / 41°0.33
51 °
Langley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.33 in
Chance of precipitation65%
Record high59° (1979)
Record low26° (2003)
Sat, 0751° / 42°0.33
51 °
Langley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.33 in
Chance of precipitation72%
Record high60° (2016)
Record low30° (2003)
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 Langley, 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 Langley, 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.