Monthly outlook for Mill Creek East, WA: average high 75.1°, average low 53.4°. That is 1° above the climate normal for August. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 15 August (83.6°), the coolest 11 August (48.9°).
75.1°/53.4°
Average high / low
+1°
Above normal
4 / 3
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
77.4°
74.1°
+1.9°
19 August – 28 August
71.1°
71.8°
-0.4°
29 August – 7 September
at normal
69.8°
—
August records over 66 years
95°16 August 2020All-time high
43.7°29 August 1980All-time low
Mon, 1077° / 51°0
77 °
Mill Creek East, Monday, 10 August
Overcast. High 77°, low 51°.
Pressure30.06 inHg
Wind2.8 mph SW
Humidity41%
Visibility6.2 mi
Dew point51°
Tue, 1178° / 49°0
78 °
Mill Creek East, Tuesday, 11 August
Clear. High 78°, low 49°.
Pressure30.09 inHg
Wind4.6 mph N
Humidity39%
Visibility6.2 mi
Dew point50°
Wed, 1278° / 50°0
78 °
Mill Creek East, Wednesday, 12 August
Clear. High 78°, low 50°.
Pressure30.00 inHg
Wind4.5 mph NW
Humidity42%
Visibility6.2 mi
Dew point52°
Thu, 1380° / 51°0
80 °
Mill Creek East, Thursday, 13 August
Clear. High 80°, low 51°.
Pressure29.85 inHg
Wind8.2 mph NW
Humidity37%
Visibility—
Dew point49°
Fri, 1482° / 53°0
82 °
Mill Creek East, Friday, 14 August
Overcast. High 82°, low 53°.
Pressure29.91 inHg
Wind7.6 mph NW
Humidity36%
Visibility—
Dew point50°
Sat, 1584° / 54°0
84 °
Mill Creek East, Saturday, 15 August
Overcast. High 84°, low 54°.
Pressure29.94 inHg
Wind7.9 mph NW
Humidity31%
Visibility—
Dew point47°
Sun, 1682° / 52°0
82 °
Mill Creek East, Sunday, 16 August
Overcast. High 82°, low 52°.
Pressure29.94 inHg
Wind7.2 mph N
Humidity27%
Visibility—
Dew point42°
Mon, 1760° / 56°0.27
60 °
Mill Creek East, Monday, 17 August
Light rain. High 60°, low 56°.
Pressure30.00 inHg
Wind8.7 mph S
Humidity93%
Visibility—
Dew point58°
Tue, 1877° / 55°0
77 °
Mill Creek East, Tuesday, 18 August
Overcast. High 77°, low 55°.
Pressure29.97 inHg
Wind8.8 mph NW
Humidity39%
Visibility—
Dew point48°
Wed, 1980° / 51°0
80 °
Mill Creek East, Wednesday, 19 August
Overcast. High 80°, low 51°.
Pressure29.97 inHg
Wind4.4 mph W
Humidity45%
Visibility—
Dew point49°
Thu, 2079° / 59°0.07
79 °
Mill Creek East, Thursday, 20 August
Light rain. High 79°, low 59°.
Pressure29.91 inHg
Wind7.4 mph NW
Humidity45%
Visibility—
Dew point54°
Fri, 2175° / 57°0.03
75 °
Mill Creek East, Friday, 21 August
Light rain. High 75°, low 57°.
Pressure29.91 inHg
Wind6 mph S
Humidity41%
Visibility—
Dew point47°
Sat, 2266° / 56°0.48
66 °
Mill Creek East, Saturday, 22 August
Light rain. High 66°, low 56°.
Pressure30.03 inHg
Wind3.7 mph N
Humidity86%
Visibility—
Dew point58°
Sun, 2370° / 53°0.02
70 °
Mill Creek East, Sunday, 23 August
Light rain. High 70°, low 53°.
Pressure30.06 inHg
Wind7.4 mph N
Humidity53%
Visibility—
Dew point50°
Mon, 2457° / 52°0.62
57 °
Mill Creek East, Monday, 24 August
Rain. High 57°, low 52°.
Pressure29.88 inHg
Wind6.5 mph SE
Humidity96%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2572° / 54°0.07
72 °
Mill Creek East, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.07 in
Chance of precipitation20%
Record high84° (2022)
Record low46° (1973)
Wed, 2672° / 54°0.05
72 °
Mill Creek East, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.05 in
Chance of precipitation20%
Record high86° (1986)
Record low46° (1993)
Thu, 2772° / 55°0.11
72 °
Mill Creek East, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.11 in
Chance of precipitation28%
Record high88° (1986)
Record low48° (1963)
Fri, 2872° / 54°0.05
72 °
Mill Creek East, Friday, 28 August
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.05 in
Chance of precipitation27%
Record high88° (1967)
Record low45° (2024)
Sat, 2971° / 55°0.11
71 °
Mill Creek East, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.11 in
Chance of precipitation32%
Record high87° (2017)
Record low44° (1980)
Sun, 3070° / 55°0.07
70 °
Mill Creek East, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.07 in
Chance of precipitation40%
Record high83° (1967)
Record low46° (1965)
Mon, 3169° / 54°0.07
69 °
Mill Creek East, Monday, 31 August
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.07 in
Chance of precipitation30%
Record high89° (1987)
Record low45° (1964)
Tue, 0170° / 54°0.11
70 °
Mill Creek East, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high70°
Average low54°
Average precipitation0.11 in
Chance of precipitation30%
Record high85° (1974)
Record low43° (2021)
Wed, 0270° / 53°0.09
70 °
Mill Creek East, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.09 in
Chance of precipitation30%
Record high90° (1988)
Record low43° (1960)
Thu, 0370° / 53°0.08
70 °
Mill Creek East, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.08 in
Chance of precipitation25%
Record high90° (1988)
Record low46° (1975)
Fri, 0470° / 53°0.07
70 °
Mill Creek East, Friday, 4 September
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.07 in
Chance of precipitation25%
Record high84° (1988)
Record low45° (1965)
Sat, 0570° / 53°0.09
70 °
Mill Creek East, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.09 in
Chance of precipitation30%
Record high98° (2017)
Record low46° (2002)
Sun, 0669° / 53°0.12
69 °
Mill Creek East, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.12 in
Chance of precipitation28%
Record high87° (2017)
Record low44° (1969)
Mon, 0769° / 53°0.07
69 °
Mill Creek East, Monday, 7 September
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.07 in
Chance of precipitation30%
Record high85° (1981)
Record low43° (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 Mill Creek East, 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 Mill Creek East, 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.