Monthly outlook for Rose Valley, WA: average high 75.7°, average low 54.5°. That is 1.5° below the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 13 August (84.3°), the coolest 11 August (50°).
75.7°/54.5°
Average high / low
−1.5°
Below normal
6 / 2
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
79.1°
79.4°
-0.2°
19 August – 28 August
70°
77.2°
-4°
29 August – 7 September
at normal
75.6°
—
August records over 66 years
106.3°3 August 2017All-time high
45.3°18 August 1973All-time low
Climate normals and records are computed from the nearest reference point — Prescott (4 mi).
Mon, 1082° / 54°0
82 °
Rose Valley, Monday, 10 August
Clear. High 82°, low 54°.
Pressure30.09 inHg
Wind4.9 mph NW
Humidity46%
Visibility6.2 mi
Dew point50°
Tue, 1184° / 50°0
84 °
Rose Valley, Tuesday, 11 August
Clear. High 84°, low 50°.
Pressure30.09 inHg
Wind5.2 mph NW
Humidity44%
Visibility6.2 mi
Dew point51°
Wed, 1279° / 54°0
79 °
Rose Valley, Wednesday, 12 August
Clear. High 79°, low 54°.
Pressure30.00 inHg
Wind5 mph NW
Humidity47%
Visibility6.2 mi
Dew point52°
Thu, 1384° / 51°0
84 °
Rose Valley, Thursday, 13 August
Clear. High 84°, low 51°.
Pressure29.85 inHg
Wind8.3 mph NW
Humidity35%
Visibility—
Dew point49°
Fri, 1483° / 53°0
83 °
Rose Valley, Friday, 14 August
Overcast. High 83°, low 53°.
Pressure29.94 inHg
Wind6.9 mph NW
Humidity40%
Visibility—
Dew point52°
Sat, 1582° / 53°0
82 °
Rose Valley, Saturday, 15 August
Mostly clear. High 82°, low 53°.
Pressure29.97 inHg
Wind8 mph NW
Humidity37%
Visibility—
Dew point50°
Sun, 1682° / 53°0
82 °
Rose Valley, Sunday, 16 August
Overcast. High 82°, low 53°.
Pressure29.97 inHg
Wind4.8 mph S
Humidity36%
Visibility—
Dew point48°
Mon, 1761° / 56°0.11
61 °
Rose Valley, Monday, 17 August
Light rain. High 61°, low 56°.
Pressure30.06 inHg
Wind6 mph SE
Humidity96%
Visibility—
Dew point58°
Tue, 1874° / 56°0.01
74 °
Rose Valley, Tuesday, 18 August
Light rain. High 74°, low 56°.
Pressure30.00 inHg
Wind2.7 mph SE
Humidity56%
Visibility—
Dew point55°
Wed, 1974° / 58°0.07
74 °
Rose Valley, Wednesday, 19 August
Light rain. High 74°, low 58°.
Pressure30.00 inHg
Wind2.4 mph NW
Humidity97%
Visibility—
Dew point63°
Thu, 2075° / 58°0.2
75 °
Rose Valley, Thursday, 20 August
Light rain. High 75°, low 58°.
Pressure29.94 inHg
Wind4.2 mph SW
Humidity91%
Visibility—
Dew point66°
Fri, 2174° / 57°0.04
74 °
Rose Valley, Friday, 21 August
Light rain. High 74°, low 57°.
Pressure29.94 inHg
Wind6.7 mph W
Humidity50%
Visibility—
Dew point52°
Sat, 2268° / 58°0.35
68 °
Rose Valley, Saturday, 22 August
Light rain. High 68°, low 58°.
Pressure30.06 inHg
Wind7.4 mph NW
Humidity86%
Visibility—
Dew point61°
Sun, 2373° / 54°0
73 °
Rose Valley, Sunday, 23 August
Overcast. High 73°, low 54°.
Pressure30.09 inHg
Wind5.9 mph N
Humidity54%
Visibility—
Dew point51°
Mon, 2457° / 52°0.35
57 °
Rose Valley, Monday, 24 August
Rain. High 57°, low 52°.
Pressure29.91 inHg
Wind4 mph SE
Humidity99%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2578° / 55°0.05
78 °
Rose Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.05 in
Chance of precipitation17%
Record high95° (1996)
Record low48° (1975)
Wed, 2678° / 55°0.02
78 °
Rose Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.02 in
Chance of precipitation13%
Record high97° (1986)
Record low48° (1991)
Thu, 2777° / 56°0.04
77 °
Rose Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high77°
Average low56°
Average precipitation0.04 in
Chance of precipitation23%
Record high97° (2017)
Record low48° (1960)
Fri, 2878° / 56°0.04
78 °
Rose Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.04 in
Chance of precipitation15%
Record high101° (2017)
Record low48° (1985)
Sat, 2976° / 56°0.07
76 °
Rose Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high76°
Average low56°
Average precipitation0.07 in
Chance of precipitation27%
Record high92° (1996)
Record low45° (1965)
Sun, 3075° / 56°0.07
75 °
Rose Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high75°
Average low56°
Average precipitation0.07 in
Chance of precipitation27%
Record high98° (2022)
Record low46° (1965)
Mon, 3175° / 56°0.05
75 °
Rose Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high75°
Average low56°
Average precipitation0.05 in
Chance of precipitation22%
Record high100° (1987)
Record low46° (1964)
Tue, 0176° / 55°0.07
76 °
Rose Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.07 in
Chance of precipitation22%
Record high95° (1988)
Record low45° (1973)
Wed, 0277° / 55°0.04
77 °
Rose Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high77°
Average low55°
Average precipitation0.04 in
Chance of precipitation13%
Record high101° (1988)
Record low45° (1960)
Thu, 0376° / 55°0.06
76 °
Rose Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.06 in
Chance of precipitation15%
Record high96° (2017)
Record low44° (1964)
Fri, 0476° / 55°0.03
76 °
Rose Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high76°
Average low55°
Average precipitation0.03 in
Chance of precipitation15%
Record high99° (2017)
Record low47° (1965)
Sat, 0575° / 55°0.06
75 °
Rose Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.06 in
Chance of precipitation17%
Record high100° (2024)
Record low45° (1969)
Sun, 0675° / 55°0.06
75 °
Rose Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.06 in
Chance of precipitation18%
Record high96° (2024)
Record low45° (1969)
Mon, 0775° / 55°0.05
75 °
Rose Valley, Monday, 7 September
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.05 in
Chance of precipitation22%
Record high93° (1981)
Record low46° (1999)
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 Rose Valley, 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 Rose Valley, 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.