Monthly outlook for Dexter by the Sea, WA: average high 67.5°, average low 56.8°. That is 1.5° below 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 24 August (81.5°), the coolest 10 August (55.1°).
67.5°/56.8°
Average high / low
−1.5°
Below normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
66.6°
70.8°
-2.3°
19 August – 28 August
69°
69.6°
-0.3°
29 August – 7 September
at normal
68.9°
—
August records over 66 years
99.5°9 August 1981All-time high
46.4°18 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Markham (13 mi).
Mon, 1074° / 55°0
74 °
Dexter by the Sea, Monday, 10 August
Partly cloudy. High 74°, low 55°.
Pressure30.12 inHg
Wind8.7 mph W
Humidity76%
Visibility6.2 mi
Dew point55°
Tue, 1165° / 56°0
65 °
Dexter by the Sea, Tuesday, 11 August
Clear. High 65°, low 56°.
Pressure30.15 inHg
Wind8.9 mph NW
Humidity74%
Visibility6.2 mi
Dew point55°
Wed, 1263° / 57°0
63 °
Dexter by the Sea, Wednesday, 12 August
Overcast. High 63°, low 57°.
Pressure30.06 inHg
Wind7.3 mph W
Humidity76%
Visibility6.2 mi
Dew point55°
Thu, 1365° / 56°0
65 °
Dexter by the Sea, Thursday, 13 August
Clear. High 65°, low 56°.
Pressure29.91 inHg
Wind9.4 mph NW
Humidity77%
Visibility—
Dew point57°
Fri, 1463° / 57°0
63 °
Dexter by the Sea, Friday, 14 August
Overcast. High 63°, low 57°.
Pressure29.94 inHg
Wind7 mph W
Humidity80%
Visibility—
Dew point56°
Sat, 1564° / 58°0
64 °
Dexter by the Sea, Saturday, 15 August
Overcast. High 64°, low 58°.
Pressure30.06 inHg
Wind7.9 mph NW
Humidity75%
Visibility—
Dew point56°
Sun, 1665° / 56°0
65 °
Dexter by the Sea, Sunday, 16 August
Partly cloudy. High 65°, low 56°.
Pressure30.12 inHg
Wind11.6 mph NW
Humidity74%
Visibility—
Dew point56°
Mon, 1765° / 57°0
65 °
Dexter by the Sea, Monday, 17 August
Mostly clear. High 65°, low 57°.
Pressure30.21 inHg
Wind10 mph NW
Humidity74%
Visibility—
Dew point55°
Tue, 1867° / 56°0
67 °
Dexter by the Sea, Tuesday, 18 August
Clear. High 67°, low 56°.
Pressure30.15 inHg
Wind10.2 mph NW
Humidity68%
Visibility—
Dew point55°
Wed, 1968° / 58°0
68 °
Dexter by the Sea, Wednesday, 19 August
Clear. High 68°, low 58°.
Pressure30.12 inHg
Wind13.3 mph NW
Humidity74%
Visibility—
Dew point58°
Thu, 2065° / 58°0
65 °
Dexter by the Sea, Thursday, 20 August
Mostly clear. High 65°, low 58°.
Pressure30.15 inHg
Wind14.9 mph NW
Humidity80%
Visibility—
Dew point58°
Fri, 2166° / 57°0
66 °
Dexter by the Sea, Friday, 21 August
Clear. High 66°, low 57°.
Pressure30.06 inHg
Wind13.4 mph NW
Humidity70%
Visibility—
Dew point55°
Sat, 2266° / 57°0
66 °
Dexter by the Sea, Saturday, 22 August
Clear. High 66°, low 57°.
Pressure30.06 inHg
Wind11.6 mph NW
Humidity76%
Visibility—
Dew point58°
Sun, 2367° / 57°0
67 °
Dexter by the Sea, Sunday, 23 August
Mostly clear. High 67°, low 57°.
Pressure30.12 inHg
Wind12.4 mph NW
Humidity74%
Visibility—
Dew point57°
Mon, 2482° / 58°0
82 °
Dexter by the Sea, Monday, 24 August
Clear. High 82°, low 58°.
Pressure29.88 inHg
Wind13.1 mph NW
Humidity42%
Visibility—
Dew point54°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2570° / 55°0.05
70 °
Dexter by the Sea, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.05 in
Chance of precipitation20%
Record high88° (2016)
Record low49° (2017)
Wed, 2670° / 54°0.05
70 °
Dexter by the Sea, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high70°
Average low54°
Average precipitation0.05 in
Chance of precipitation22%
Record high89° (2016)
Record low49° (1970)
Thu, 2770° / 55°0.08
70 °
Dexter by the Sea, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.08 in
Chance of precipitation25%
Record high88° (2019)
Record low50° (1960)
Fri, 2870° / 55°0.06
70 °
Dexter by the Sea, Friday, 28 August
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.06 in
Chance of precipitation18%
Record high96° (2017)
Record low48° (2024)
Sat, 2969° / 55°0.07
69 °
Dexter by the Sea, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.07 in
Chance of precipitation28%
Record high83° (2007)
Record low46° (1980)
Sun, 3069° / 55°0.09
69 °
Dexter by the Sea, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.09 in
Chance of precipitation27%
Record high89° (1987)
Record low49° (1966)
Mon, 3169° / 55°0.07
69 °
Dexter by the Sea, Monday, 31 August
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.07 in
Chance of precipitation25%
Record high94° (1987)
Record low48° (1964)
Tue, 0169° / 55°0.1
69 °
Dexter by the Sea, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.1 in
Chance of precipitation23%
Record high91° (1988)
Record low45° (1973)
Wed, 0270° / 55°0.07
70 °
Dexter by the Sea, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.07 in
Chance of precipitation27%
Record high97° (1988)
Record low46° (1960)
Thu, 0369° / 55°0.05
69 °
Dexter by the Sea, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.05 in
Chance of precipitation18%
Record high87° (1972)
Record low48° (1964)
Fri, 0469° / 54°0.04
69 °
Dexter by the Sea, Friday, 4 September
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.04 in
Chance of precipitation15%
Record high90° (2017)
Record low46° (2015)
Sat, 0569° / 54°0.07
69 °
Dexter by the Sea, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.07 in
Chance of precipitation23%
Record high95° (2024)
Record low47° (2002)
Sun, 0668° / 54°0.09
68 °
Dexter by the Sea, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high68°
Average low54°
Average precipitation0.09 in
Chance of precipitation30%
Record high88° (2014)
Record low46° (1960)
Mon, 0769° / 54°0.04
69 °
Dexter by the Sea, Monday, 7 September
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.04 in
Chance of precipitation22%
Record high88° (2012)
Record low46° (1992)
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 Dexter by the Sea, 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 Dexter by the Sea, 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.