Monthly outlook for Brinnon, WA: average high 77.5°, average low 55.2°. That is 1.3° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 August (85.5°), the coolest 10 August (48.5°).
77.5°/55.2°
Average high / low
+1.3°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
76.7°
76.2°
+0.3°
18 August – 27 August
78.9°
73.5°
+3°
28 August – 6 September
at normal
71.6°
—
August records over 66 years
97°9 August 1981All-time high
43.7°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Bremerton (13 mi).
Sun, 0973° / 49°0
73 °
Brinnon, Sunday, 9 August
Overcast. High 73°, low 49°.
Pressure30.03 inHg
Wind6.4 mph SE
Humidity47%
Visibility6.2 mi
Dew point50°
Mon, 1078° / 48°0
78 °
Brinnon, Monday, 10 August
Partly cloudy. High 78°, low 48°.
Pressure30.09 inHg
Wind6.6 mph SE
Humidity53%
Visibility6.2 mi
Dew point52°
Tue, 1179° / 54°0
79 °
Brinnon, Tuesday, 11 August
Clear. High 79°, low 54°.
Pressure30.09 inHg
Wind6.8 mph SE
Humidity46%
Visibility6.2 mi
Dew point51°
Wed, 1263° / 55°0
63 °
Brinnon, Wednesday, 12 August
Overcast. High 63°, low 55°.
Pressure30.06 inHg
Wind3 mph SE
Humidity88%
Visibility3.5 mi
Dew point56°
Thu, 1371° / 55°0
71 °
Brinnon, Thursday, 13 August
Overcast. High 71°, low 55°.
Pressure30.00 inHg
Wind4.7 mph SE
Humidity64%
Visibility—
Dew point53°
Fri, 1480° / 54°0
80 °
Brinnon, Friday, 14 August
Overcast. High 80°, low 54°.
Pressure29.97 inHg
Wind6.4 mph E
Humidity41%
Visibility—
Dew point51°
Sat, 1581° / 58°0
81 °
Brinnon, Saturday, 15 August
Overcast. High 81°, low 58°.
Pressure29.97 inHg
Wind7.3 mph SE
Humidity47%
Visibility—
Dew point53°
Sun, 1679° / 55°0
79 °
Brinnon, Sunday, 16 August
Mostly clear. High 79°, low 55°.
Pressure30.03 inHg
Wind6.3 mph SE
Humidity43%
Visibility—
Dew point52°
Mon, 1783° / 56°0
83 °
Brinnon, Monday, 17 August
Overcast. High 83°, low 56°.
Pressure30.00 inHg
Wind6 mph SE
Humidity32%
Visibility—
Dew point46°
Tue, 1881° / 56°0
81 °
Brinnon, Tuesday, 18 August
Overcast. High 81°, low 56°.
Pressure30.06 inHg
Wind7.2 mph SE
Humidity33%
Visibility—
Dew point47°
Wed, 1971° / 59°0.02
71 °
Brinnon, Wednesday, 19 August
Light rain. High 71°, low 59°.
Pressure30.06 inHg
Wind5.1 mph E
Humidity67%
Visibility—
Dew point55°
Thu, 2078° / 58°0
78 °
Brinnon, Thursday, 20 August
Overcast. High 78°, low 58°.
Pressure30.03 inHg
Wind5.5 mph SE
Humidity53%
Visibility—
Dew point55°
Fri, 2179° / 56°0
79 °
Brinnon, Friday, 21 August
Partly cloudy. High 79°, low 56°.
Pressure30.03 inHg
Wind6.1 mph SE
Humidity46%
Visibility—
Dew point54°
Sat, 2280° / 57°0
80 °
Brinnon, Saturday, 22 August
Overcast. High 80°, low 57°.
Pressure30.00 inHg
Wind6.5 mph E
Humidity46%
Visibility—
Dew point54°
Sun, 2385° / 59°0
85 °
Brinnon, Sunday, 23 August
Partly cloudy. High 85°, low 59°.
Pressure29.91 inHg
Wind6.4 mph E
Humidity30%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2473° / 56°0.06
73 °
Brinnon, Monday, 24 August
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.06 in
Chance of precipitation20%
Record high88° (2025)
Record low48° (1993)
Tue, 2573° / 56°0.06
73 °
Brinnon, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.06 in
Chance of precipitation15%
Record high88° (1996)
Record low50° (2021)
Wed, 2674° / 57°0.06
74 °
Brinnon, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.06 in
Chance of precipitation20%
Record high90° (1986)
Record low46° (2008)
Thu, 2774° / 57°0.07
74 °
Brinnon, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.07 in
Chance of precipitation28%
Record high93° (1986)
Record low45° (1960)
Fri, 2873° / 57°0.06
73 °
Brinnon, Friday, 28 August
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.06 in
Chance of precipitation25%
Record high91° (1967)
Record low45° (1980)
Sat, 2973° / 57°0.1
73 °
Brinnon, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.1 in
Chance of precipitation30%
Record high87° (1967)
Record low44° (1965)
Sun, 3071° / 56°0.08
71 °
Brinnon, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.08 in
Chance of precipitation32%
Record high88° (1967)
Record low46° (1964)
Mon, 3171° / 56°0.07
71 °
Brinnon, Monday, 31 August
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.07 in
Chance of precipitation35%
Record high90° (1987)
Record low46° (1973)
Tue, 0171° / 56°0.08
71 °
Brinnon, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.08 in
Chance of precipitation27%
Record high88° (1987)
Record low48° (2021)
Wed, 0272° / 55°0.09
72 °
Brinnon, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (1988)
Record low48° (1980)
Thu, 0372° / 56°0.06
72 °
Brinnon, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.06 in
Chance of precipitation30%
Record high95° (1988)
Record low46° (1969)
Fri, 0471° / 56°0.08
71 °
Brinnon, Friday, 4 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.08 in
Chance of precipitation30%
Record high87° (2017)
Record low48° (2015)
Sat, 0571° / 56°0.07
71 °
Brinnon, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.07 in
Chance of precipitation35%
Record high98° (2017)
Record low47° (1992)
Sun, 0671° / 55°0.1
71 °
Brinnon, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.1 in
Chance of precipitation33%
Record high91° (2017)
Record low45° (1976)
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 Brinnon, 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 Brinnon, 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.