Monthly outlook for Sunshine, WA: average high 87.2°, average low 62.6°. That is 3.4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 23 August (97.7°), the coolest 10 August (53.9°).
87.2°/62.6°
Average high / low
+3.4°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
84.5°
82.2°
+1.3°
19 August – 28 August
91.8°
79°
+7.1°
29 August – 7 September
at normal
76.9°
—
August records over 66 years
105.4°4 August 1961All-time high
37.8°24 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Moscow (5 mi).
Mon, 1085° / 54°0
85 °
Sunshine, Monday, 10 August
Clear. High 85°, low 54°.
Pressure29.91 inHg
Wind11.3 mph W
Humidity19%
Visibility6.2 mi
Dew point35°
Tue, 1186° / 54°0
86 °
Sunshine, Tuesday, 11 August
Clear. High 86°, low 54°.
Pressure29.94 inHg
Wind10.9 mph W
Humidity20%
Visibility6.2 mi
Dew point38°
Wed, 1283° / 61°0
83 °
Sunshine, Wednesday, 12 August
Clear. High 83°, low 61°.
Pressure29.85 inHg
Wind10.5 mph W
Humidity28%
Visibility6.2 mi
Dew point44°
Thu, 1386° / 60°0
86 °
Sunshine, Thursday, 13 August
Clear. High 86°, low 60°.
Pressure29.80 inHg
Wind8 mph W
Humidity31%
Visibility6.2 mi
Dew point46°
Fri, 1487° / 61°0
87 °
Sunshine, Friday, 14 August
Overcast. High 87°, low 61°.
Pressure29.85 inHg
Wind9.1 mph NW
Humidity28%
Visibility—
Dew point44°
Sat, 1590° / 64°0.03
90 °
Sunshine, Saturday, 15 August
Light rain. High 90°, low 64°.
Pressure29.91 inHg
Wind8.2 mph S
Humidity19%
Visibility—
Dew point34°
Sun, 1683° / 63°0
83 °
Sunshine, Sunday, 16 August
Overcast. High 83°, low 63°.
Pressure29.94 inHg
Wind18.3 mph W
Humidity24%
Visibility—
Dew point36°
Mon, 1782° / 61°0
82 °
Sunshine, Monday, 17 August
Overcast. High 82°, low 61°.
Pressure29.97 inHg
Wind15.4 mph W
Humidity25%
Visibility—
Dew point35°
Tue, 1878° / 63°0
78 °
Sunshine, Tuesday, 18 August
Overcast. High 78°, low 63°.
Pressure30.00 inHg
Wind13.4 mph W
Humidity35%
Visibility—
Dew point44°
Wed, 1984° / 63°0
84 °
Sunshine, Wednesday, 19 August
Overcast. High 84°, low 63°.
Pressure30.00 inHg
Wind9 mph W
Humidity33%
Visibility—
Dew point44°
Thu, 2088° / 65°0
88 °
Sunshine, Thursday, 20 August
Partly cloudy. High 88°, low 65°.
Pressure30.03 inHg
Wind15.4 mph W
Humidity28%
Visibility—
Dew point44°
Fri, 2192° / 68°0
92 °
Sunshine, Friday, 21 August
Clear. High 92°, low 68°.
Pressure30.03 inHg
Wind16.2 mph W
Humidity30%
Visibility—
Dew point49°
Sat, 2292° / 68°0
92 °
Sunshine, Saturday, 22 August
Clear. High 92°, low 68°.
Pressure30.03 inHg
Wind10 mph W
Humidity21%
Visibility—
Dew point40°
Sun, 2398° / 69°0
98 °
Sunshine, Sunday, 23 August
Clear. High 98°, low 69°.
Pressure29.94 inHg
Wind6.9 mph W
Humidity17%
Visibility—
Dew point38°
Mon, 2497° / 71°0
97 °
Sunshine, Monday, 24 August
Clear. High 97°, low 71°.
Pressure29.85 inHg
Wind14 mph W
Humidity16%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 55°0.01
78 °
Sunshine, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.01 in
Chance of precipitation10%
Record high93° (1996)
Record low42° (1992)
Wed, 2679° / 55°0.02
79 °
Sunshine, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high94° (1996)
Record low45° (1980)
Thu, 2779° / 56°0.01
79 °
Sunshine, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.01 in
Chance of precipitation7%
Record high93° (2009)
Record low42° (1976)
Fri, 2879° / 55°0.01
79 °
Sunshine, Friday, 28 August
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.01 in
Chance of precipitation12%
Record high97° (2009)
Record low39° (1960)
Sat, 2979° / 56°0.01
79 °
Sunshine, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.01 in
Chance of precipitation5%
Record high95° (2017)
Record low40° (1980)
Sun, 3078° / 56°0.03
78 °
Sunshine, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.03 in
Chance of precipitation15%
Record high93° (1967)
Record low41° (1965)
Mon, 3176° / 55°0.02
76 °
Sunshine, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.02 in
Chance of precipitation15%
Record high97° (2022)
Record low43° (1965)
Tue, 0177° / 55°0.02
77 °
Sunshine, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high95° (2025)
Record low40° (1999)
Wed, 0276° / 55°0.02
76 °
Sunshine, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high96° (2025)
Record low42° (2008)
Thu, 0377° / 54°0.01
77 °
Sunshine, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low54°
Average precipitation0.01 in
Chance of precipitation13%
Record high97° (1988)
Record low42° (1964)
Fri, 0477° / 54°0.02
77 °
Sunshine, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low54°
Average precipitation0.02 in
Chance of precipitation10%
Record high95° (1988)
Record low43° (1965)
Sat, 0577° / 55°0.02
77 °
Sunshine, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.02 in
Chance of precipitation7%
Record high92° (1988)
Record low41° (1969)
Sun, 0676° / 54°0.03
76 °
Sunshine, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low54°
Average precipitation0.03 in
Chance of precipitation15%
Record high91° (2024)
Record low42° (1969)
Mon, 0776° / 53°0.02
76 °
Sunshine, Monday, 7 September
Climate normal for this date — 60-year average.
Average high76°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high92° (2024)
Record low38° (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 Sunshine, 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 Sunshine, 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.