As of 18:06 PDT

Weather in Brennan, WA

52°Current weather

Brennan, Monday, 19 October, 18:06

Partly cloudy. Feels like 51°. High 60°, low 45°.

Pressure30.00 inHg
Wind1 mph NW
Humidity83%
Visibility1.7 mi
Dew point48°

Monthly outlook for Brennan, WA: average high 56.6°, average low 45.4°. That is 1.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 9 days and 4.2 inches. The warmest day looks like 20 October (61.8°), the coolest 24 October (41.7°).

56.6°/45.4°
Average high / low
+1.7°
Above normal
3 / 9
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October57.1°54.5°+1.4°
29 October – 7 November55.8°51.3°+2.5°
8 November – 17 Novemberat normal48.8°—

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).

Tue, 2062° / 43°0Mostly clear
62 °Mostly clear

Brennan, Tuesday, 20 October

Mostly clear. High 62°, low 43°.

Pressure30.09 inHg
Wind2.4 mph NW
Humidity78%
Visibility0.3 mi
Dew point48°
Wed, 2161° / 45°0Partly cloudy
61 °Partly cloudy

Brennan, Wednesday, 21 October

Partly cloudy. High 61°, low 45°.

Pressure29.97 inHg
Wind1.1 mph W
Humidity75%
Visibility6.0 mi
Dew point50°
Thu, 2256° / 44°0.02Light rain
56 °Light rain

Brennan, Thursday, 22 October

Light rain. High 56°, low 44°.

Pressure29.91 inHg
Wind4.6 mph SW
Humidity83%
Visibility1.9 mi
Dew point49°
Fri, 2352° / 43°0Overcast
52 °Overcast

Brennan, Friday, 23 October

Overcast. High 52°, low 43°.

Pressure30.27 inHg
Wind4.6 mph W
Humidity80%
Visibility3.3 mi
Dew point46°
Sat, 2449° / 42°0.42Rain
49 °Rain

Brennan, Saturday, 24 October

Rain. High 49°, low 42°.

Pressure30.06 inHg
Wind8.4 mph NE
Humidity96%
Visibility—
Dew point44°
Sun, 2554° / 44°0.03Light rain
54 °Light rain

Brennan, Sunday, 25 October

Light rain. High 54°, low 44°.

Pressure30.21 inHg
Wind12.5 mph NE
Humidity58%
Visibility—
Dew point36°
Mon, 2657° / 47°0Overcast
57 °Overcast

Brennan, Monday, 26 October

Overcast. High 57°, low 47°.

Pressure30.24 inHg
Wind7.7 mph NW
Humidity61%
Visibility—
Dew point39°
Tue, 2760° / 45°0Overcast
60 °Overcast

Brennan, Tuesday, 27 October

Overcast. High 60°, low 45°.

Pressure30.18 inHg
Wind7.8 mph NW
Humidity59%
Visibility—
Dew point39°
Wed, 2860° / 45°0Overcast
60 °Overcast

Brennan, Wednesday, 28 October

Overcast. High 60°, low 45°.

Pressure30.03 inHg
Wind6.5 mph NE
Humidity64%
Visibility—
Dew point40°
Thu, 2956° / 47°0Overcast
56 °Overcast

Brennan, Thursday, 29 October

Overcast. High 56°, low 47°.

Pressure29.94 inHg
Wind2.9 mph E
Humidity60%
Visibility—
Dew point40°
Fri, 3056° / 49°0Overcast
56 °Overcast

Brennan, Friday, 30 October

Overcast. High 56°, low 49°.

Pressure29.97 inHg
Wind5.3 mph N
Humidity66%
Visibility—
Dew point42°
Sat, 3156° / 49°0Overcast
56 °Overcast

Brennan, Saturday, 31 October

Overcast. High 56°, low 49°.

Pressure30.12 inHg
Wind4.3 mph NE
Humidity69%
Visibility—
Dew point43°
Sun, 0158° / 47°0Overcast
58 °Overcast

Brennan, Sunday, 1 November

Overcast. High 58°, low 47°.

Pressure30.06 inHg
Wind4.1 mph NE
Humidity67%
Visibility—
Dew point42°
Mon, 0258° / 48°0.43Rain
58 °Rain

Brennan, Monday, 2 November

Rain. High 58°, low 48°.

Pressure29.53 inHg
Wind11.2 mph S
Humidity93%
Visibility—
Dew point49°
Tue, 0351° / 46°0.04Light rain
51 °Light rain

Brennan, Tuesday, 3 November

Light rain. High 51°, low 46°.

Pressure29.80 inHg
Wind10.5 mph SE
Humidity83%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0452° / 42°0.38Climate normal
52 °Climate normal

Brennan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low42°
Average precipitation0.38 in
Chance of precipitation62%
Record high65° (1980)
Record low30° (2017)
Thu, 0551° / 41°0.22Climate normal
51 °Climate normal

Brennan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°
Average low41°
Average precipitation0.22 in
Chance of precipitation65%
Record high64° (1980)
Record low28° (1971)
Fri, 0650° / 41°0.35Climate normal
50 °Climate normal

Brennan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.35 in
Chance of precipitation62%
Record high59° (2014)
Record low28° (2003)
Sat, 0750° / 42°0.34Climate normal
50 °Climate normal

Brennan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low42°
Average precipitation0.34 in
Chance of precipitation73%
Record high59° (1962)
Record low29° (2003)
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)

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.