Monthly outlook for Pleasant Valley, WA: average high 66.8°, average low 55.7°. That is 2.5° below the climate normal for August. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 10 August (77.4°), the coolest 10 August (51.5°).
66.8°/55.7°
Average high / low
−2.5°
Below normal
5 / 3
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
68.3°
71.9°
-2°
19 August – 28 August
64.2°
70.2°
-3.3°
29 August – 7 September
at normal
68.5°
—
August records over 66 years
95.2°12 August 2021All-time high
44.2°28 August 1969All-time low
Climate normals and records are computed from the nearest reference point — Bellingham (15 mi).
Mon, 1077° / 52°0
77 °
Pleasant Valley, Monday, 10 August
Clear. High 77°, low 52°.
Pressure30.09 inHg
Wind8.8 mph S
Humidity72%
Visibility6.2 mi
Dew point53°
Tue, 1166° / 53°0
66 °
Pleasant Valley, Tuesday, 11 August
Clear. High 66°, low 53°.
Pressure30.12 inHg
Wind7.9 mph S
Humidity69%
Visibility6.2 mi
Dew point53°
Wed, 1267° / 55°0
67 °
Pleasant Valley, Wednesday, 12 August
Clear. High 67°, low 55°.
Pressure30.00 inHg
Wind6.2 mph SW
Humidity71%
Visibility6.2 mi
Dew point54°
Thu, 1369° / 56°0
69 °
Pleasant Valley, Thursday, 13 August
Mostly clear. High 69°, low 56°.
Pressure29.88 inHg
Wind5.3 mph SE
Humidity69%
Visibility—
Dew point55°
Fri, 1467° / 57°0
67 °
Pleasant Valley, Friday, 14 August
Overcast. High 67°, low 57°.
Pressure29.94 inHg
Wind7.8 mph SE
Humidity67%
Visibility—
Dew point55°
Sat, 1568° / 57°0
68 °
Pleasant Valley, Saturday, 15 August
Overcast. High 68°, low 57°.
Pressure30.00 inHg
Wind10.4 mph S
Humidity69%
Visibility—
Dew point55°
Sun, 1667° / 56°0
67 °
Pleasant Valley, Sunday, 16 August
Overcast. High 67°, low 56°.
Pressure29.97 inHg
Wind12.3 mph SE
Humidity67%
Visibility—
Dew point54°
Mon, 1759° / 57°0.19
59 °
Pleasant Valley, Monday, 17 August
Light rain. High 59°, low 57°.
Pressure29.97 inHg
Wind9.3 mph S
Humidity94%
Visibility—
Dew point57°
Tue, 1866° / 58°0.04
66 °
Pleasant Valley, Tuesday, 18 August
Light rain. High 66°, low 58°.
Pressure30.03 inHg
Wind9.6 mph S
Humidity67%
Visibility—
Dew point53°
Wed, 1967° / 54°0
67 °
Pleasant Valley, Wednesday, 19 August
Mostly clear. High 67°, low 54°.
Pressure29.97 inHg
Wind5.9 mph W
Humidity63%
Visibility—
Dew point53°
Thu, 2068° / 59°0.05
68 °
Pleasant Valley, Thursday, 20 August
Light rain. High 68°, low 59°.
Pressure29.94 inHg
Wind12.5 mph NW
Humidity70%
Visibility—
Dew point57°
Fri, 2166° / 58°0
66 °
Pleasant Valley, Friday, 21 August
Overcast. High 66°, low 58°.
Pressure29.94 inHg
Wind8.4 mph S
Humidity68%
Visibility—
Dew point54°
Sat, 2264° / 56°0
64 °
Pleasant Valley, Saturday, 22 August
Overcast. High 64°, low 56°.
Pressure30.00 inHg
Wind12.7 mph SE
Humidity76%
Visibility—
Dew point55°
Sun, 2364° / 55°0.09
64 °
Pleasant Valley, Sunday, 23 August
Light rain. High 64°, low 55°.
Pressure30.09 inHg
Wind11.1 mph S
Humidity72%
Visibility—
Dew point54°
Mon, 2456° / 55°1.01
56 °
Pleasant Valley, Monday, 24 August
Rain. High 56°, low 55°.
Pressure29.88 inHg
Wind8.5 mph SE
Humidity96%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2570° / 56°0.07
70 °
Pleasant Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high70°
Average low56°
Average precipitation0.07 in
Chance of precipitation22%
Record high90° (1996)
Record low48° (1995)
Wed, 2671° / 56°0.07
71 °
Pleasant Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.07 in
Chance of precipitation25%
Record high87° (1986)
Record low49° (1977)
Thu, 2770° / 56°0.13
70 °
Pleasant Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high70°
Average low56°
Average precipitation0.13 in
Chance of precipitation28%
Record high90° (1986)
Record low48° (1965)
Fri, 2870° / 56°0.07
70 °
Pleasant Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high70°
Average low56°
Average precipitation0.07 in
Chance of precipitation22%
Record high88° (1967)
Record low44° (1969)
Sat, 2970° / 56°0.1
70 °
Pleasant Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high70°
Average low56°
Average precipitation0.1 in
Chance of precipitation30%
Record high87° (1996)
Record low47° (1965)
Sun, 3068° / 56°0.12
68 °
Pleasant Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high68°
Average low56°
Average precipitation0.12 in
Chance of precipitation27%
Record high83° (2022)
Record low47° (1965)
Mon, 3168° / 56°0.1
68 °
Pleasant Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high68°
Average low56°
Average precipitation0.1 in
Chance of precipitation27%
Record high89° (1987)
Record low48° (1964)
Tue, 0168° / 55°0.12
68 °
Pleasant Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.12 in
Chance of precipitation27%
Record high84° (1987)
Record low45° (1973)
Wed, 0269° / 55°0.07
69 °
Pleasant Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.07 in
Chance of precipitation25%
Record high88° (1988)
Record low46° (1960)
Thu, 0369° / 55°0.08
69 °
Pleasant Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.08 in
Chance of precipitation25%
Record high88° (1988)
Record low46° (1975)
Fri, 0468° / 55°0.08
68 °
Pleasant Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.08 in
Chance of precipitation28%
Record high87° (2017)
Record low44° (1970)
Sat, 0568° / 55°0.11
68 °
Pleasant Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.11 in
Chance of precipitation25%
Record high94° (2017)
Record low47° (1969)
Sun, 0668° / 55°0.09
68 °
Pleasant Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high68°
Average low55°
Average precipitation0.09 in
Chance of precipitation33%
Record high83° (1987)
Record low46° (1992)
Mon, 0768° / 54°0.06
68 °
Pleasant Valley, Monday, 7 September
Climate normal for this date — 60-year average.
Average high68°
Average low54°
Average precipitation0.06 in
Chance of precipitation35%
Record high83° (1981)
Record low43° (1970)
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 Pleasant Valley, 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 Pleasant Valley, 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.