Monthly outlook for Clyde Hill, WA: average high 83.1°, average low 56.8°. That is 4.4° 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 16 August (91.7°), the coolest 9 August (53.4°).
83.1°/56.8°
Average high / low
+4.4°
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
84.2°
76.1°
+4.5°
18 August – 27 August
81.3°
73.7°
+4.3°
28 August – 6 September
at normal
71.8°
—
August records over 66 years
95.9°9 August 1981All-time high
43°30 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Bellevue (4 mi).
Sun, 0977° / 53°0
77 °
Clyde Hill, Sunday, 9 August
Overcast. High 77°, low 53°.
Pressure30.03 inHg
Wind2 mph SW
Humidity36%
Visibility6.2 mi
Dew point49°
Mon, 1082° / 54°0
82 °
Clyde Hill, Monday, 10 August
Mostly clear. High 82°, low 54°.
Pressure30.06 inHg
Wind3.4 mph SW
Humidity41%
Visibility6.2 mi
Dew point51°
Tue, 1183° / 55°0
83 °
Clyde Hill, Tuesday, 11 August
Clear. High 83°, low 55°.
Pressure30.09 inHg
Wind2.4 mph N
Humidity38%
Visibility6.2 mi
Dew point51°
Wed, 1282° / 56°0
82 °
Clyde Hill, Wednesday, 12 August
Clear. High 82°, low 56°.
Pressure30.00 inHg
Wind4.7 mph SW
Humidity43%
Visibility6.2 mi
Dew point52°
Thu, 1381° / 56°0
81 °
Clyde Hill, Thursday, 13 August
Clear. High 81°, low 56°.
Pressure29.94 inHg
Wind9.4 mph NW
Humidity34%
Visibility—
Dew point47°
Fri, 1485° / 58°0
85 °
Clyde Hill, Friday, 14 August
Clear. High 85°, low 58°.
Pressure29.94 inHg
Wind7.8 mph NW
Humidity33%
Visibility—
Dew point49°
Sat, 1589° / 60°0
89 °
Clyde Hill, Saturday, 15 August
Clear. High 89°, low 60°.
Pressure29.97 inHg
Wind8.5 mph N
Humidity23%
Visibility—
Dew point44°
Sun, 1692° / 61°0
92 °
Clyde Hill, Sunday, 16 August
Partly cloudy. High 92°, low 61°.
Pressure29.97 inHg
Wind8.7 mph NW
Humidity22%
Visibility—
Dew point45°
Mon, 1789° / 59°0
89 °
Clyde Hill, Monday, 17 August
Mostly clear. High 89°, low 59°.
Pressure29.97 inHg
Wind9.3 mph N
Humidity25%
Visibility—
Dew point46°
Tue, 1887° / 58°0
87 °
Clyde Hill, Tuesday, 18 August
Overcast. High 87°, low 58°.
Pressure30.00 inHg
Wind7.5 mph N
Humidity27%
Visibility—
Dew point46°
Wed, 1980° / 57°0
80 °
Clyde Hill, Wednesday, 19 August
Overcast. High 80°, low 57°.
Pressure30.06 inHg
Wind7.4 mph N
Humidity35%
Visibility—
Dew point48°
Thu, 2080° / 57°0
80 °
Clyde Hill, Thursday, 20 August
Clear. High 80°, low 57°.
Pressure30.03 inHg
Wind10.8 mph N
Humidity38%
Visibility—
Dew point50°
Fri, 2179° / 55°0
79 °
Clyde Hill, Friday, 21 August
Clear. High 79°, low 55°.
Pressure30.00 inHg
Wind8 mph NW
Humidity40%
Visibility—
Dew point50°
Sat, 2286° / 56°0
86 °
Clyde Hill, Saturday, 22 August
Overcast. High 86°, low 56°.
Pressure29.94 inHg
Wind8.3 mph N
Humidity31%
Visibility—
Dew point47°
Sun, 2376° / 56°0
76 °
Clyde Hill, Sunday, 23 August
Overcast. High 76°, low 56°.
Pressure30.03 inHg
Wind7.7 mph N
Humidity48%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2473° / 55°0.07
73 °
Clyde Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.07 in
Chance of precipitation17%
Record high88° (2025)
Record low48° (1993)
Tue, 2573° / 54°0.07
73 °
Clyde Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high73°
Average low54°
Average precipitation0.07 in
Chance of precipitation18%
Record high87° (2025)
Record low46° (1995)
Wed, 2674° / 54°0.05
74 °
Clyde Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.05 in
Chance of precipitation22%
Record high88° (1986)
Record low46° (1993)
Thu, 2774° / 55°0.08
74 °
Clyde Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high74°
Average low55°
Average precipitation0.08 in
Chance of precipitation27%
Record high90° (1986)
Record low48° (1962)
Fri, 2874° / 55°0.04
74 °
Clyde Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high74°
Average low55°
Average precipitation0.04 in
Chance of precipitation20%
Record high91° (1967)
Record low45° (2000)
Sat, 2973° / 55°0.11
73 °
Clyde Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.11 in
Chance of precipitation25%
Record high87° (2017)
Record low44° (1980)
Sun, 3072° / 55°0.07
72 °
Clyde Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.07 in
Chance of precipitation33%
Record high86° (1967)
Record low43° (1965)
Mon, 3171° / 54°0.06
71 °
Clyde Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.06 in
Chance of precipitation30%
Record high91° (1987)
Record low45° (1964)
Tue, 0171° / 54°0.08
71 °
Clyde Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.08 in
Chance of precipitation27%
Record high87° (1987)
Record low43° (1973)
Wed, 0272° / 53°0.08
72 °
Clyde Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.08 in
Chance of precipitation30%
Record high93° (1988)
Record low43° (1960)
Thu, 0372° / 54°0.08
72 °
Clyde Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.08 in
Chance of precipitation25%
Record high92° (1988)
Record low44° (1975)
Fri, 0472° / 54°0.06
72 °
Clyde Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.06 in
Chance of precipitation22%
Record high87° (2017)
Record low44° (1965)
Sat, 0571° / 54°0.07
71 °
Clyde Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.07 in
Chance of precipitation30%
Record high93° (2017)
Record low46° (2000)
Sun, 0671° / 53°0.1
71 °
Clyde Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (2017)
Record low42° (1960)
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 Clyde Hill, 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 Clyde Hill, 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.