As of 12:55 PDT

Weather in Brennan, WA

57°Current weather

Brennan, Friday, 23 October, 12:55

Clear. Feels like 55°. High 57°, low 42°.

Pressure30.30 inHg
Wind6.9 mph N
Humidity66%
Visibility6.2 mi
Dew point46°

Monthly outlook for Brennan, WA: average high 53.1°, average low 43.5°. That is 0.5° above the climate normal for October. Precipitation is expected on 8 days (about 7.6 inches), against a normal of 9 days and 4.4 inches. The warmest day looks like 26 October (58.5°), the coolest 1 November (39.9°).

53.1°/43.5°
Average high / low
+0.5°
Above normal
8 / 9
Wet days / normal
7.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
23 October – 1 November54.2°53°+0.7°
2 November – 11 November51.2°50.5°+0.4°
12 November – 21 Novemberat normal47.4°—

October records over 66 years

81.1°1 October 1987All-time high
21.6°31 October 1984All-time low

Climate normals and records are computed from the nearest reference point — Bellingham (6 mi).

Sat, 2450° / 42°0.13Light rain
50 °Light rain

Brennan, Saturday, 24 October

Light rain. High 50°, low 42°.

Pressure30.18 inHg
Wind5 mph NE
Humidity96%
Visibility3.1 mi
Dew point44°
Sun, 2549° / 45°0.7Rain
49 °Rain

Brennan, Sunday, 25 October

Rain. High 49°, low 45°.

Pressure30.00 inHg
Wind14.7 mph NE
Humidity91%
Visibility2.4 mi
Dew point45°
Mon, 2658° / 43°0Clear
58 °Clear

Brennan, Monday, 26 October

Clear. High 58°, low 43°.

Pressure30.00 inHg
Wind0.9 mph NE
Humidity75%
Visibility6.2 mi
Dew point48°
Tue, 2754° / 44°0.06Light rain
54 °Light rain

Brennan, Tuesday, 27 October

Light rain. High 54°, low 44°.

Pressure30.12 inHg
Wind1.4 mph SE
Humidity84%
Visibility1.2 mi
Dew point47°
Wed, 2858° / 43°0Overcast
58 °Overcast

Brennan, Wednesday, 28 October

Overcast. High 58°, low 43°.

Pressure30.15 inHg
Wind14.9 mph NE
Humidity93%
Visibility—
Dew point45°
Thu, 2955° / 41°0Clear
55 °Clear

Brennan, Thursday, 29 October

Clear. High 55°, low 41°.

Pressure30.15 inHg
Wind10.2 mph NE
Humidity48%
Visibility—
Dew point30°
Fri, 3053° / 42°0Mostly clear
53 °Mostly clear

Brennan, Friday, 30 October

Mostly clear. High 53°, low 42°.

Pressure29.97 inHg
Wind2.8 mph E
Humidity53%
Visibility—
Dew point32°
Sat, 3155° / 41°0Clear
55 °Clear

Brennan, Saturday, 31 October

Clear. High 55°, low 41°.

Pressure29.94 inHg
Wind6.1 mph NW
Humidity52%
Visibility—
Dew point31°
Sun, 0154° / 40°0Clear
54 °Clear

Brennan, Sunday, 1 November

Clear. High 54°, low 40°.

Pressure29.83 inHg
Wind6.1 mph NW
Humidity51%
Visibility—
Dew point30°
Mon, 0251° / 40°0Clear
51 °Clear

Brennan, Monday, 2 November

Clear. High 51°, low 40°.

Pressure29.85 inHg
Wind7.1 mph SE
Humidity56%
Visibility—
Dew point32°
Tue, 0349° / 46°0.14Light rain
49 °Light rain

Brennan, Tuesday, 3 November

Light rain. High 49°, low 46°.

Pressure29.91 inHg
Wind12.6 mph S
Humidity85%
Visibility—
Dew point44°
Wed, 0446° / 44°0.39Rain
46 °Rain

Brennan, Wednesday, 4 November

Rain. High 46°, low 44°.

Pressure29.83 inHg
Wind11.8 mph SE
Humidity86%
Visibility—
Dew point42°
Thu, 0549° / 44°0.98Rain
49 °Rain

Brennan, Thursday, 5 November

Rain. High 49°, low 44°.

Pressure29.26 inHg
Wind25.1 mph SE
Humidity84%
Visibility—
Dew point43°
Fri, 0656° / 49°4.35Heavy rain
56 °Heavy rain

Brennan, Friday, 6 November

Heavy rain. High 56°, low 49°.

Pressure29.41 inHg
Wind18.6 mph S
Humidity94%
Visibility—
Dew point54°
Sat, 0755° / 51°0.8Rain
55 °Rain

Brennan, Saturday, 7 November

Rain. High 55°, low 51°.

Pressure29.53 inHg
Wind15.5 mph S
Humidity98%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0850° / 41°0.25Climate normal
50 °Climate normal

Brennan, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.25 in
Chance of precipitation60%
Record high67° (2016)
Record low28° (2022)
Mon, 0950° / 40°0.28Climate normal
50 °Climate normal

Brennan, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.28 in
Chance of precipitation60%
Record high64° (2025)
Record low28° (2022)
Tue, 1050° / 40°0.24Climate normal
50 °Climate normal

Brennan, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low40°
Average precipitation0.24 in
Chance of precipitation53%
Record high64° (2025)
Record low28° (1966)
Wed, 1149° / 40°0.31Climate normal
49 °Climate normal

Brennan, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.31 in
Chance of precipitation60%
Record high60° (1996)
Record low25° (1985)
Thu, 1249° / 40°0.32Climate normal
49 °Climate normal

Brennan, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.32 in
Chance of precipitation68%
Record high59° (1990)
Record low28° (1978)
Fri, 1349° / 40°0.32Climate normal
49 °Climate normal

Brennan, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.32 in
Chance of precipitation65%
Record high63° (1967)
Record low26° (1982)
Sat, 1448° / 39°0.3Climate normal
48 °Climate normal

Brennan, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°
Average low39°
Average precipitation0.3 in
Chance of precipitation63%
Record high61° (1999)
Record low28° (1982)
Sun, 1549° / 40°0.36Climate normal
49 °Climate normal

Brennan, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.36 in
Chance of precipitation70%
Record high59° (2001)
Record low30° (1961)
Mon, 1647° / 40°0.32Climate normal
47 °Climate normal

Brennan, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low40°
Average precipitation0.32 in
Chance of precipitation70%
Record high58° (1965)
Record low28° (1968)
Tue, 1747° / 38°0.32Climate normal
47 °Climate normal

Brennan, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.32 in
Chance of precipitation72%
Record high58° (1967)
Record low25° (1994)
Wed, 1846° / 38°0.24Climate normal
46 °Climate normal

Brennan, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°
Average low38°
Average precipitation0.24 in
Chance of precipitation62%
Record high55° (1965)
Record low26° (1985)
Thu, 1946° / 38°0.34Climate normal
46 °Climate normal

Brennan, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high46°
Average low38°
Average precipitation0.34 in
Chance of precipitation72%
Record high59° (1987)
Record low24° (2011)
Fri, 2047° / 38°0.3Climate normal
47 °Climate normal

Brennan, Friday, 20 November

Climate normal for this date — 60-year average.

Average high47°
Average low38°
Average precipitation0.3 in
Chance of precipitation60%
Record high60° (2002)
Record low24° (1985)
Sat, 2145° / 37°0.26Climate normal
45 °Climate normal

Brennan, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°
Average low37°
Average precipitation0.26 in
Chance of precipitation52%
Record high56° (2002)
Record low19° (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 Brennan, 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 Brennan, 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.