Monthly outlook for Mount Vista, WA: average high 86.3°, average low 53.3°. That is 3.5° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 16 August (94.3°), the coolest 13 August (49.6°).
86.3°/53.3°
Average high / low
+3.5°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
87.7°
81.1°
+3.7°
18 August – 27 August
84°
78.4°
+3.1°
28 August – 6 September
at normal
76.9°
—
August records over 66 years
107.6°14 August 2023All-time high
46°18 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Minnehaha (6 mi).
Sun, 0982° / 54°0
82 °
Mount Vista, Sunday, 9 August
Mostly clear. High 82°, low 54°.
Pressure30.03 inHg
Wind6.1 mph NW
Humidity35%
Visibility6.2 mi
Dew point47°
Mon, 1085° / 53°0
85 °
Mount Vista, Monday, 10 August
Clear. High 85°, low 53°.
Pressure30.06 inHg
Wind5.8 mph NW
Humidity40%
Visibility6.2 mi
Dew point49°
Tue, 1186° / 50°0
86 °
Mount Vista, Tuesday, 11 August
Clear. High 86°, low 50°.
Pressure30.06 inHg
Wind5.3 mph NW
Humidity39%
Visibility6.2 mi
Dew point51°
Wed, 1280° / 54°0
80 °
Mount Vista, Wednesday, 12 August
Clear. High 80°, low 54°.
Pressure30.03 inHg
Wind5 mph N
Humidity45%
Visibility6.2 mi
Dew point51°
Thu, 1387° / 50°0
87 °
Mount Vista, Thursday, 13 August
Clear. High 87°, low 50°.
Pressure29.88 inHg
Wind10.5 mph NW
Humidity30%
Visibility—
Dew point46°
Fri, 1493° / 53°0
93 °
Mount Vista, Friday, 14 August
Clear. High 93°, low 53°.
Pressure29.88 inHg
Wind8.2 mph NW
Humidity24%
Visibility—
Dew point45°
Sat, 1592° / 57°0
92 °
Mount Vista, Saturday, 15 August
Overcast. High 92°, low 57°.
Pressure29.97 inHg
Wind6.5 mph NW
Humidity27%
Visibility—
Dew point49°
Sun, 1694° / 57°0
94 °
Mount Vista, Sunday, 16 August
Clear. High 94°, low 57°.
Pressure29.97 inHg
Wind8.6 mph NW
Humidity24%
Visibility—
Dew point47°
Mon, 1790° / 56°0
90 °
Mount Vista, Monday, 17 August
Overcast. High 90°, low 56°.
Pressure29.94 inHg
Wind7.1 mph NW
Humidity22%
Visibility—
Dew point43°
Tue, 1886° / 55°0
86 °
Mount Vista, Tuesday, 18 August
Overcast. High 86°, low 55°.
Pressure30.00 inHg
Wind7.6 mph NW
Humidity29%
Visibility—
Dew point46°
Wed, 1984° / 53°0
84 °
Mount Vista, Wednesday, 19 August
Overcast. High 84°, low 53°.
Pressure30.03 inHg
Wind8.3 mph NW
Humidity29%
Visibility—
Dew point45°
Thu, 2082° / 53°0
82 °
Mount Vista, Thursday, 20 August
Clear. High 82°, low 53°.
Pressure30.00 inHg
Wind10.9 mph NW
Humidity32%
Visibility—
Dew point46°
Fri, 2185° / 51°0
85 °
Mount Vista, Friday, 21 August
Clear. High 85°, low 51°.
Pressure29.97 inHg
Wind8.9 mph NW
Humidity35%
Visibility—
Dew point48°
Sat, 2286° / 51°0
86 °
Mount Vista, Saturday, 22 August
Partly cloudy. High 86°, low 51°.
Pressure29.91 inHg
Wind12 mph NW
Humidity27%
Visibility—
Dew point44°
Sun, 2381° / 51°0
81 °
Mount Vista, Sunday, 23 August
Overcast. High 81°, low 51°.
Pressure30.00 inHg
Wind9.8 mph NW
Humidity24%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 56°0.07
78 °
Mount Vista, Monday, 24 August
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.07 in
Chance of precipitation13%
Record high99° (1996)
Record low49° (2021)
Tue, 2578° / 55°0.07
78 °
Mount Vista, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.07 in
Chance of precipitation15%
Record high93° (2023)
Record low47° (1975)
Wed, 2679° / 56°0.03
79 °
Mount Vista, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.03 in
Chance of precipitation8%
Record high98° (1986)
Record low48° (1993)
Thu, 2778° / 57°0.06
78 °
Mount Vista, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high78°
Average low57°
Average precipitation0.06 in
Chance of precipitation20%
Record high96° (1972)
Record low49° (1960)
Fri, 2879° / 56°0.04
79 °
Mount Vista, Friday, 28 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.04 in
Chance of precipitation10%
Record high98° (1967)
Record low47° (2024)
Sat, 2978° / 57°0.08
78 °
Mount Vista, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high78°
Average low57°
Average precipitation0.08 in
Chance of precipitation20%
Record high92° (2007)
Record low47° (1965)
Sun, 3076° / 56°0.08
76 °
Mount Vista, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high76°
Average low56°
Average precipitation0.08 in
Chance of precipitation32%
Record high98° (2022)
Record low48° (1965)
Mon, 3176° / 56°0.07
76 °
Mount Vista, Monday, 31 August
Climate normal for this date — 60-year average.
Average high76°
Average low56°
Average precipitation0.07 in
Chance of precipitation25%
Record high100° (1987)
Record low47° (1964)
Tue, 0176° / 55°0.09
76 °
Mount Vista, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.09 in
Chance of precipitation22%
Record high95° (1988)
Record low47° (1999)
Wed, 0277° / 55°0.07
77 °
Mount Vista, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.07 in
Chance of precipitation20%
Record high101° (1988)
Record low45° (1960)
Thu, 0377° / 55°0.07
77 °
Mount Vista, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.07 in
Chance of precipitation18%
Record high96° (1988)
Record low44° (1964)
Fri, 0477° / 55°0.04
77 °
Mount Vista, Friday, 4 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.04 in
Chance of precipitation20%
Record high101° (2017)
Record low47° (2000)
Sat, 0576° / 55°0.06
76 °
Mount Vista, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.06 in
Chance of precipitation20%
Record high99° (2024)
Record low47° (1969)
Sun, 0676° / 55°0.11
76 °
Mount Vista, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.11 in
Chance of precipitation20%
Record high94° (2024)
Record low45° (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 Mount Vista, 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 Mount Vista, 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.