Monthly outlook for Langley, WA: average high 56.5°, average low 47°. That is 0.9° below the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 8 days and 3.4 inches. The warmest day looks like 8 October (68.8°), the coolest 23 October (45.7°).
56.5°/47°
Average high / low
−0.9°
Below normal
1 / 8
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
57°
58.9°
-1.1°
18 October – 27 October
55.5°
55.8°
-0.2°
28 October – 6 November
at normal
52.4°
—
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).
Fri, 0961° / 49°0.01
61 °
Langley, Friday, 9 October
Light rain. High 61°, low 49°.
Pressure29.83 inHg
Wind22.1 mph NW
Humidity72%
Visibility6.2 mi
Dew point47°
Sat, 1054° / 47°0.02
54 °
Langley, Saturday, 10 October
Light rain. High 54°, low 47°.
Pressure29.88 inHg
Wind5.4 mph NW
Humidity73%
Visibility6.2 mi
Dew point44°
Sun, 1157° / 46°0
57 °
Langley, Sunday, 11 October
Clear. High 57°, low 46°.
Pressure30.00 inHg
Wind7.6 mph NW
Humidity62%
Visibility6.2 mi
Dew point41°
Mon, 1256° / 47°0
56 °
Langley, Monday, 12 October
Clear. High 56°, low 47°.
Pressure30.06 inHg
Wind2.8 mph S
Humidity67%
Visibility3.8 mi
Dew point43°
Tue, 1354° / 46°0
54 °
Langley, Tuesday, 13 October
Overcast. High 54°, low 46°.
Pressure30.15 inHg
Wind11.7 mph SE
Humidity78%
Visibility—
Dew point44°
Wed, 1455° / 50°0.05
55 °
Langley, Wednesday, 14 October
Light rain. High 55°, low 50°.
Pressure30.21 inHg
Wind16.3 mph NW
Humidity79%
Visibility—
Dew point48°
Thu, 1554° / 46°0
54 °
Langley, Thursday, 15 October
Clear. High 54°, low 46°.
Pressure30.45 inHg
Wind8.3 mph N
Humidity73%
Visibility—
Dew point42°
Fri, 1657° / 46°0
57 °
Langley, Friday, 16 October
Overcast. High 57°, low 46°.
Pressure30.39 inHg
Wind5.6 mph NW
Humidity54%
Visibility—
Dew point35°
Sat, 1754° / 47°0
54 °
Langley, Saturday, 17 October
Overcast. High 54°, low 47°.
Pressure30.27 inHg
Wind9.1 mph NW
Humidity62%
Visibility—
Dew point39°
Sun, 1856° / 46°0
56 °
Langley, Sunday, 18 October
Clear. High 56°, low 46°.
Pressure30.21 inHg
Wind6.2 mph NW
Humidity65%
Visibility—
Dew point41°
Mon, 1956° / 46°0
56 °
Langley, Monday, 19 October
Clear. High 56°, low 46°.
Pressure30.21 inHg
Wind6.8 mph S
Humidity69%
Visibility—
Dew point42°
Tue, 2055° / 47°0
55 °
Langley, Tuesday, 20 October
Partly cloudy. High 55°, low 47°.
Pressure30.21 inHg
Wind5.5 mph N
Humidity69%
Visibility—
Dew point43°
Wed, 2154° / 46°0
54 °
Langley, Wednesday, 21 October
Overcast. High 54°, low 46°.
Pressure30.27 inHg
Wind7 mph NW
Humidity75%
Visibility—
Dew point43°
Thu, 2257° / 47°0
57 °
Langley, Thursday, 22 October
Mostly clear. High 57°, low 47°.
Pressure30.15 inHg
Wind5.2 mph NW
Humidity74%
Visibility—
Dew point44°
Fri, 2355° / 46°0
55 °
Langley, Friday, 23 October
Clear. High 55°, low 46°.
Pressure30.18 inHg
Wind7.6 mph NW
Humidity72%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2455° / 44°0.2
55 °
Langley, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high55°
Average low44°
Average precipitation0.2 in
Chance of precipitation60%
Record high68° (1965)
Record low36° (1972)
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)
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.