Monthly outlook for Lynden, WA: average high 56.1°, average low 43.8°. That is 1.9° above the climate normal for October. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 9 days and 5.2 inches. The warmest day looks like 26 October (61.9°), the coolest 23 October (35.8°).
56.1°/43.8°
Average high / low
+1.9°
Above normal
6 / 9
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
56.5°
53.5°
+1.7°
1 November – 10 November
55.4°
50.4°
+2.8°
11 November – 20 November
at normal
47.3°
—
October records over 66 years
84.2°1 October 1987All-time high
18.9°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Everson (5 mi).
Fri, 2355° / 36°0
55 °
Lynden, Friday, 23 October
Partly cloudy. High 55°, low 36°.
Pressure30.33 inHg
Wind2 mph NW
Humidity86%
Visibility0.6 mi
Dew point46°
Sat, 2451° / 39°0.07
51 °
Lynden, Saturday, 24 October
Light rain. High 51°, low 39°.
Pressure30.21 inHg
Wind2 mph N
Humidity91%
Visibility0.4 mi
Dew point44°
Sun, 2560° / 47°0.03
60 °
Lynden, Sunday, 25 October
Light rain. High 60°, low 47°.
Pressure30.12 inHg
Wind5.5 mph NE
Humidity71%
Visibility6.2 mi
Dew point46°
Mon, 2662° / 46°0
62 °
Lynden, Monday, 26 October
Mostly clear. High 62°, low 46°.
Pressure30.18 inHg
Wind7.1 mph NE
Humidity73%
Visibility—
Dew point46°
Tue, 2760° / 46°0
60 °
Lynden, Tuesday, 27 October
Overcast. High 60°, low 46°.
Pressure30.15 inHg
Wind7.1 mph S
Humidity75%
Visibility—
Dew point43°
Wed, 2860° / 44°0
60 °
Lynden, Wednesday, 28 October
Overcast. High 60°, low 44°.
Pressure30.09 inHg
Wind3.1 mph NE
Humidity50%
Visibility—
Dew point34°
Thu, 2959° / 45°0.02
59 °
Lynden, Thursday, 29 October
Light rain. High 59°, low 45°.
Pressure29.94 inHg
Wind6.6 mph SW
Humidity56%
Visibility—
Dew point38°
Fri, 3052° / 40°0.23
52 °
Lynden, Friday, 30 October
Light rain. High 52°, low 40°.
Pressure29.77 inHg
Wind10.4 mph S
Humidity88%
Visibility—
Dew point46°
Sat, 3150° / 39°0
50 °
Lynden, Saturday, 31 October
Overcast. High 50°, low 39°.
Pressure30.06 inHg
Wind2.7 mph SE
Humidity78%
Visibility—
Dew point39°
Sun, 0154° / 39°0
54 °
Lynden, Sunday, 1 November
Overcast. High 54°, low 39°.
Pressure30.24 inHg
Wind3.6 mph N
Humidity60%
Visibility—
Dew point34°
Mon, 0256° / 39°0
56 °
Lynden, Monday, 2 November
Overcast. High 56°, low 39°.
Pressure30.27 inHg
Wind2.1 mph NE
Humidity59%
Visibility—
Dew point35°
Tue, 0353° / 46°0.52
53 °
Lynden, Tuesday, 3 November
Rain. High 53°, low 46°.
Pressure30.12 inHg
Wind11.2 mph S
Humidity66%
Visibility—
Dew point39°
Wed, 0451° / 49°0.07
51 °
Lynden, Wednesday, 4 November
Light rain. High 51°, low 49°.
Pressure30.18 inHg
Wind7.6 mph S
Humidity91%
Visibility—
Dew point48°
Thu, 0557° / 48°1
57 °
Lynden, Thursday, 5 November
Rain. High 57°, low 48°.
Pressure29.91 inHg
Wind4.9 mph S
Humidity98%
Visibility—
Dew point51°
Fri, 0661° / 58°0.06
61 °
Lynden, Friday, 6 November
Light rain. High 61°, low 58°.
Pressure29.62 inHg
Wind13.5 mph S
Humidity78%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0749° / 40°0.41
49 °
Lynden, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.41 in
Chance of precipitation70%
Record high59° (1962)
Record low26° (2017)
Sun, 0849° / 39°0.3
49 °
Lynden, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.3 in
Chance of precipitation58%
Record high68° (2016)
Record low25° (2022)
Mon, 0949° / 39°0.34
49 °
Lynden, Monday, 9 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.34 in
Chance of precipitation60%
Record high62° (1976)
Record low26° (2022)
Tue, 1049° / 39°0.28
49 °
Lynden, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.28 in
Chance of precipitation50%
Record high64° (2016)
Record low26° (2022)
Wed, 1149° / 39°0.36
49 °
Lynden, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.36 in
Chance of precipitation65%
Record high61° (1996)
Record low23° (1985)
Thu, 1249° / 39°0.39
49 °
Lynden, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.39 in
Chance of precipitation70%
Record high59° (1976)
Record low27° (1985)
Fri, 1349° / 39°0.38
49 °
Lynden, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.38 in
Chance of precipitation65%
Record high64° (1967)
Record low26° (1982)
Sat, 1448° / 38°0.38
48 °
Lynden, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.38 in
Chance of precipitation62%
Record high62° (1999)
Record low27° (1964)
Sun, 1548° / 38°0.41
48 °
Lynden, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.41 in
Chance of precipitation68%
Record high58° (1999)
Record low30° (2014)
Mon, 1647° / 38°0.37
47 °
Lynden, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.37 in
Chance of precipitation67%
Record high58° (1965)
Record low27° (2023)
Tue, 1747° / 37°0.39
47 °
Lynden, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.39 in
Chance of precipitation70%
Record high59° (1967)
Record low26° (1994)
Wed, 1846° / 37°0.29
46 °
Lynden, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.29 in
Chance of precipitation63%
Record high55° (1965)
Record low24° (1985)
Thu, 1946° / 37°0.39
46 °
Lynden, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.39 in
Chance of precipitation72%
Record high60° (1987)
Record low24° (1978)
Fri, 2046° / 36°0.36
46 °
Lynden, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.36 in
Chance of precipitation58%
Record high61° (2002)
Record low22° (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 Lynden, 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 Lynden, 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.