As of 03:43 PDT

Weather in Arlington, WA

39°Current weather

Arlington, Sunday, 18 October, 03:43

Clear. Feels like 39°. High 60°, low 39°.

Pressure30.21 inHg
Wind2 mph N
Humidity95%
Visibility6.2 mi
Dew point38°

Monthly outlook for Arlington, WA: average high 56.1°, average low 42.2°. That is 0.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 9 days and 4.2 inches. The warmest day looks like 21 October (63.1°), the coolest 18 October (39.3°).

56.1°/42.2°
Average high / low
+0.8°
Above normal
4 / 9
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October57.8°55.8°+1.1°
28 October – 6 November53.2°52.4°+0.4°
7 November – 16 Novemberat normal49.9°—

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 (6 mi).

Mon, 1963° / 44°0Overcast
63 °Overcast

Arlington, Monday, 19 October

Overcast. High 63°, low 44°.

Pressure30.00 inHg
Wind1.9 mph SE
Humidity71%
Visibility6.2 mi
Dew point46°
Tue, 2060° / 41°0Mostly clear
60 °Mostly clear

Arlington, Tuesday, 20 October

Mostly clear. High 60°, low 41°.

Pressure30.06 inHg
Wind4.7 mph W
Humidity78%
Visibility6.2 mi
Dew point48°
Wed, 2163° / 41°0Clear
63 °Clear

Arlington, Wednesday, 21 October

Clear. High 63°, low 41°.

Pressure29.94 inHg
Wind1.7 mph W
Humidity68%
Visibility6.2 mi
Dew point47°
Thu, 2252° / 43°0.02Light rain
52 °Light rain

Arlington, Thursday, 22 October

Light rain. High 52°, low 43°.

Pressure30.00 inHg
Wind4.5 mph NW
Humidity75%
Visibility—
Dew point44°
Fri, 2352° / 41°0.06Light rain
52 °Light rain

Arlington, Friday, 23 October

Light rain. High 52°, low 41°.

Pressure30.27 inHg
Wind4.9 mph SE
Humidity89%
Visibility—
Dew point44°
Sat, 2458° / 40°0Overcast
58 °Overcast

Arlington, Saturday, 24 October

Overcast. High 58°, low 40°.

Pressure30.39 inHg
Wind3.4 mph NW
Humidity51%
Visibility—
Dew point34°
Sun, 2553° / 43°0Overcast
53 °Overcast

Arlington, Sunday, 25 October

Overcast. High 53°, low 43°.

Pressure30.24 inHg
Wind4.3 mph N
Humidity51%
Visibility—
Dew point33°
Mon, 2658° / 42°0Overcast
58 °Overcast

Arlington, Monday, 26 October

Overcast. High 58°, low 42°.

Pressure30.09 inHg
Wind6.1 mph NW
Humidity74%
Visibility—
Dew point43°
Tue, 2760° / 42°0Mostly clear
60 °Mostly clear

Arlington, Tuesday, 27 October

Mostly clear. High 60°, low 42°.

Pressure30.06 inHg
Wind4 mph W
Humidity62%
Visibility—
Dew point40°
Wed, 2860° / 41°0Clear
60 °Clear

Arlington, Wednesday, 28 October

Clear. High 60°, low 41°.

Pressure30.18 inHg
Wind3.5 mph NW
Humidity57%
Visibility—
Dew point38°
Thu, 2954° / 42°0Overcast
54 °Overcast

Arlington, Thursday, 29 October

Overcast. High 54°, low 42°.

Pressure30.15 inHg
Wind4.2 mph S
Humidity76%
Visibility—
Dew point43°
Fri, 3057° / 47°0Overcast
57 °Overcast

Arlington, Friday, 30 October

Overcast. High 57°, low 47°.

Pressure30.03 inHg
Wind11.1 mph SE
Humidity64%
Visibility—
Dew point42°
Sat, 3153° / 43°0.7Rain
53 °Rain

Arlington, Saturday, 31 October

Rain. High 53°, low 43°.

Pressure29.77 inHg
Wind12.3 mph SW
Humidity86%
Visibility—
Dew point49°
Sun, 0147° / 42°0.17Light rain
47 °Light rain

Arlington, Sunday, 1 November

Light rain. High 47°, low 42°.

Pressure30.00 inHg
Wind4.7 mph E
Humidity89%
Visibility—
Dew point43°
Mon, 0248° / 44°0.19Light rain
48 °Light rain

Arlington, Monday, 2 November

Light rain. High 48°, low 44°.

Pressure29.97 inHg
Wind8.7 mph SE
Humidity90%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0352° / 42°0.32Climate normal
52 °Climate normal

Arlington, 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°0.38Climate normal
53 °Climate normal

Arlington, 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°0.24Climate normal
52 °Climate normal

Arlington, 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°0.33Climate normal
51 °Climate normal

Arlington, 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°0.33Climate normal
51 °Climate normal

Arlington, 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)
Sun, 0851° / 41°0.28Climate normal
51 °Climate normal

Arlington, 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 low30° (1977)
Mon, 0950° / 40°0.27Climate normal
50 °Climate normal

Arlington, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.27 in
Chance of precipitation63%
Record high61° (2025)
Record low28° (1978)
Tue, 1051° / 40°0.25Climate normal
51 °Climate normal

Arlington, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low40°
Average precipitation0.25 in
Chance of precipitation48%
Record high64° (2016)
Record low27° (1986)
Wed, 1150° / 40°0.29Climate normal
50 °Climate normal

Arlington, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.29 in
Chance of precipitation60%
Record high61° (1996)
Record low25° (1985)
Thu, 1250° / 40°0.35Climate normal
50 °Climate normal

Arlington, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.35 in
Chance of precipitation67%
Record high58° (1976)
Record low26° (1978)
Fri, 1350° / 40°0.36Climate normal
50 °Climate normal

Arlington, 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 low25° (1978)
Sat, 1450° / 40°0.31Climate normal
50 °Climate normal

Arlington, 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 low26° (1978)
Sun, 1549° / 39°0.34Climate normal
49 °Climate normal

Arlington, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low39°
Average precipitation0.34 in
Chance of precipitation70%
Record high57° (2008)
Record low29° (1978)
Mon, 1648° / 39°0.33Climate normal
48 °Climate normal

Arlington, Monday, 16 November

Climate normal for this date — 60-year average.

Average high48°
Average low39°
Average precipitation0.33 in
Chance of precipitation75%
Record high61° (1965)
Record low27° (2023)

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 Arlington, 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 Arlington, 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.