Monthly outlook for Foy, WA: average high 77.4°, average low 54°. That is 2.6° above the climate normal for August. Precipitation is expected on 1 day (about 0.0 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 17 August (84.3°), the coolest 10 August (50.8°).
77.4°/54°
Average high / low
+2.6°
Above normal
1 / 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
77.7°
73.5°
+2.3°
18 August – 27 August
77.1°
71.4°
+3.2°
28 August – 6 September
at normal
69.4°
—
August records over 66 years
92.1°16 August 2020All-time high
43.5°29 August 1980All-time low
Climate normals and records are computed from the nearest reference point — Mountlake Terrace (4 mi).
Sun, 0976° / 53°0
76 °
Foy, Sunday, 9 August
Partly cloudy. High 76°, low 53°.
Pressure30.03 inHg
Wind1.2 mph SW
Humidity37%
Visibility6.2 mi
Dew point50°
Mon, 1078° / 51°0
78 °
Foy, Monday, 10 August
Partly cloudy. High 78°, low 51°.
Pressure30.06 inHg
Wind2.1 mph W
Humidity41%
Visibility6.2 mi
Dew point51°
Tue, 1180° / 52°0
80 °
Foy, Tuesday, 11 August
Clear. High 80°, low 52°.
Pressure30.09 inHg
Wind1.1 mph NW
Humidity40%
Visibility6.2 mi
Dew point52°
Wed, 1266° / 56°0
66 °
Foy, Wednesday, 12 August
Overcast. High 66°, low 56°.
Pressure30.06 inHg
Wind3.5 mph SW
Humidity75%
Visibility6.2 mi
Dew point57°
Thu, 1375° / 55°0.04
75 °
Foy, Thursday, 13 August
Light rain. High 75°, low 55°.
Pressure30.00 inHg
Wind7.8 mph N
Humidity44%
Visibility—
Dew point49°
Fri, 1475° / 51°0
75 °
Foy, Friday, 14 August
Overcast. High 75°, low 51°.
Pressure29.97 inHg
Wind8.5 mph N
Humidity47%
Visibility—
Dew point51°
Sat, 1581° / 54°0
81 °
Foy, Saturday, 15 August
Overcast. High 81°, low 54°.
Pressure29.97 inHg
Wind6.4 mph SE
Humidity42%
Visibility—
Dew point50°
Sun, 1681° / 54°0
81 °
Foy, Sunday, 16 August
Mostly clear. High 81°, low 54°.
Pressure30.03 inHg
Wind8.2 mph NW
Humidity34%
Visibility—
Dew point47°
Mon, 1784° / 53°0
84 °
Foy, Monday, 17 August
Partly cloudy. High 84°, low 53°.
Pressure30.00 inHg
Wind8.5 mph NW
Humidity27%
Visibility—
Dew point44°
Tue, 1884° / 54°0
84 °
Foy, Tuesday, 18 August
Overcast. High 84°, low 54°.
Pressure30.03 inHg
Wind6.6 mph S
Humidity28%
Visibility—
Dew point45°
Wed, 1967° / 56°0
67 °
Foy, Wednesday, 19 August
Overcast. High 67°, low 56°.
Pressure30.06 inHg
Wind6.2 mph NW
Humidity64%
Visibility—
Dew point54°
Thu, 2078° / 55°0
78 °
Foy, Thursday, 20 August
Overcast. High 78°, low 55°.
Pressure30.00 inHg
Wind9.2 mph NW
Humidity45%
Visibility—
Dew point53°
Fri, 2183° / 56°0
83 °
Foy, Friday, 21 August
Mostly clear. High 83°, low 56°.
Pressure30.03 inHg
Wind10.1 mph N
Humidity36%
Visibility—
Dew point50°
Sat, 2274° / 54°0
74 °
Foy, Saturday, 22 August
Overcast. High 74°, low 54°.
Pressure30.03 inHg
Wind9.1 mph N
Humidity54%
Visibility—
Dew point54°
Sun, 2377° / 53°0
77 °
Foy, Sunday, 23 August
Clear. High 77°, low 53°.
Pressure29.94 inHg
Wind7.8 mph N
Humidity45%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2471° / 54°0.07
71 °
Foy, Monday, 24 August
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.07 in
Chance of precipitation17%
Record high85° (2025)
Record low46° (1993)
Tue, 2571° / 54°0.07
71 °
Foy, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.07 in
Chance of precipitation20%
Record high85° (2025)
Record low46° (1973)
Wed, 2672° / 54°0.05
72 °
Foy, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.05 in
Chance of precipitation18%
Record high84° (1986)
Record low45° (1993)
Thu, 2771° / 55°0.11
71 °
Foy, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (1986)
Record low47° (1963)
Fri, 2871° / 54°0.05
71 °
Foy, Friday, 28 August
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.05 in
Chance of precipitation27%
Record high86° (1967)
Record low47° (2024)
Sat, 2971° / 55°0.11
71 °
Foy, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.11 in
Chance of precipitation32%
Record high84° (2017)
Record low44° (1980)
Sun, 3069° / 55°0.07
69 °
Foy, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high69°
Average low55°
Average precipitation0.07 in
Chance of precipitation38%
Record high82° (1967)
Record low46° (1964)
Mon, 3169° / 54°0.07
69 °
Foy, Monday, 31 August
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.07 in
Chance of precipitation28%
Record high87° (1987)
Record low45° (1964)
Tue, 0169° / 54°0.11
69 °
Foy, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.11 in
Chance of precipitation30%
Record high84° (1987)
Record low44° (1973)
Wed, 0269° / 53°0.09
69 °
Foy, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation30%
Record high87° (1988)
Record low43° (1960)
Thu, 0369° / 53°0.08
69 °
Foy, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.08 in
Chance of precipitation27%
Record high88° (1988)
Record low46° (1999)
Fri, 0469° / 53°0.07
69 °
Foy, Friday, 4 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.07 in
Chance of precipitation25%
Record high83° (1988)
Record low45° (1965)
Sat, 0569° / 53°0.09
69 °
Foy, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation32%
Record high92° (2017)
Record low46° (2005)
Sun, 0669° / 53°0.12
69 °
Foy, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.12 in
Chance of precipitation30%
Record high85° (2017)
Record low44° (1969)
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 Foy, 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 Foy, 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.