Monthly outlook for Prescott Valley, AZ: average high 86.9°, average low 67.8°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 8 days and 1.9 inches. The warmest day looks like 9 August (106.7°), the coolest 10 August (63.8°).
86.9°/67.8°
Average high / low
+0.7°
Above normal
5 / 8
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
87.2°
86°
+0.7°
19 August – 28 August
86.4°
84.9°
+0.8°
29 August – 7 September
at normal
84.4°
—
August records over 66 years
99.9°16 August 2020All-time high
46°23 August 1968All-time low
Mon, 1096° / 64°0.75
96 °
Prescott Valley, Monday, 10 August
Heavy rain. High 96°, low 64°.
Pressure29.94 inHg
Wind4.6 mph NW
Humidity31%
Visibility6.2 mi
Dew point54°
Tue, 1188° / 67°0.03
88 °
Prescott Valley, Tuesday, 11 August
Light rain. High 88°, low 67°.
Pressure29.97 inHg
Wind5.7 mph W
Humidity34%
Visibility6.2 mi
Dew point53°
Wed, 1282° / 69°0.26
82 °
Prescott Valley, Wednesday, 12 August
Light rain. High 82°, low 69°.
Pressure29.91 inHg
Wind6.4 mph SW
Humidity43%
Visibility6.2 mi
Dew point57°
Thu, 1376° / 65°0.96
76 °
Prescott Valley, Thursday, 13 August
Rain. High 76°, low 65°.
Pressure29.94 inHg
Wind8.3 mph S
Humidity63%
Visibility—
Dew point58°
Fri, 1480° / 66°0
80 °
Prescott Valley, Friday, 14 August
Overcast. High 80°, low 66°.
Pressure30.00 inHg
Wind7.9 mph S
Humidity48%
Visibility—
Dew point55°
Sat, 1585° / 68°0
85 °
Prescott Valley, Saturday, 15 August
Overcast. High 85°, low 68°.
Pressure30.03 inHg
Wind12.1 mph SW
Humidity35%
Visibility—
Dew point49°
Sun, 1685° / 69°0
85 °
Prescott Valley, Sunday, 16 August
Clear. High 85°, low 69°.
Pressure30.09 inHg
Wind12.8 mph SW
Humidity32%
Visibility—
Dew point47°
Mon, 1787° / 69°0
87 °
Prescott Valley, Monday, 17 August
Partly cloudy. High 87°, low 69°.
Pressure30.06 inHg
Wind10.8 mph W
Humidity29%
Visibility—
Dew point46°
Tue, 1886° / 70°0.03
86 °
Prescott Valley, Tuesday, 18 August
Light rain. High 86°, low 70°.
Pressure29.97 inHg
Wind12.2 mph W
Humidity32%
Visibility—
Dew point49°
Wed, 1986° / 67°0.07
86 °
Prescott Valley, Wednesday, 19 August
Light rain. High 86°, low 67°.
Pressure29.97 inHg
Wind18.3 mph S
Humidity38%
Visibility—
Dew point53°
Thu, 2085° / 65°0.05
85 °
Prescott Valley, Thursday, 20 August
Light rain. High 85°, low 65°.
Pressure30.03 inHg
Wind10.4 mph S
Humidity45%
Visibility—
Dew point54°
Fri, 2186° / 65°0
86 °
Prescott Valley, Friday, 21 August
Overcast. High 86°, low 65°.
Pressure30.00 inHg
Wind13.2 mph SW
Humidity40%
Visibility—
Dew point51°
Sat, 2287° / 68°0
87 °
Prescott Valley, Saturday, 22 August
Clear. High 87°, low 68°.
Pressure29.97 inHg
Wind13.1 mph W
Humidity32%
Visibility—
Dew point48°
Sun, 2390° / 70°0
90 °
Prescott Valley, Sunday, 23 August
Clear. High 90°, low 70°.
Pressure29.94 inHg
Wind15.1 mph W
Humidity25%
Visibility—
Dew point44°
Mon, 2485° / 71°0.02
85 °
Prescott Valley, Monday, 24 August
Light rain. High 85°, low 71°.
Pressure29.91 inHg
Wind9.3 mph SE
Humidity26%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2584° / 64°0.15
84 °
Prescott Valley, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low64°
Average precipitation0.15 in
Chance of precipitation52%
Record high94° (2011)
Record low54° (1990)
Wed, 2685° / 63°0.13
85 °
Prescott Valley, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high85°
Average low63°
Average precipitation0.13 in
Chance of precipitation48%
Record high96° (2011)
Record low56° (1990)
Thu, 2785° / 64°0.12
85 °
Prescott Valley, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low64°
Average precipitation0.12 in
Chance of precipitation45%
Record high97° (2011)
Record low55° (1972)
Fri, 2886° / 64°0.09
86 °
Prescott Valley, Friday, 28 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.09 in
Chance of precipitation32%
Record high95° (2011)
Record low57° (1964)
Sat, 2986° / 64°0.09
86 °
Prescott Valley, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.09 in
Chance of precipitation43%
Record high95° (2011)
Record low57° (1979)
Sun, 3086° / 64°0.11
86 °
Prescott Valley, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high86°
Average low64°
Average precipitation0.11 in
Chance of precipitation43%
Record high95° (2011)
Record low53° (2010)
Mon, 3185° / 64°0.1
85 °
Prescott Valley, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low64°
Average precipitation0.1 in
Chance of precipitation47%
Record high95° (2011)
Record low54° (1964)
Tue, 0184° / 63°0.09
84 °
Prescott Valley, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.09 in
Chance of precipitation43%
Record high94° (2011)
Record low54° (1964)
Wed, 0284° / 63°0.1
84 °
Prescott Valley, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.1 in
Chance of precipitation42%
Record high91° (2002)
Record low52° (2000)
Thu, 0385° / 63°0.06
85 °
Prescott Valley, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low63°
Average precipitation0.06 in
Chance of precipitation33%
Record high93° (2020)
Record low47° (1961)
Fri, 0484° / 63°0.09
84 °
Prescott Valley, Friday, 4 September
Climate normal for this date — 60-year average.
Average high84°
Average low63°
Average precipitation0.09 in
Chance of precipitation43%
Record high96° (2020)
Record low47° (1961)
Sat, 0583° / 62°0.14
83 °
Prescott Valley, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.14 in
Chance of precipitation35%
Record high95° (2020)
Record low50° (1985)
Sun, 0683° / 62°0.11
83 °
Prescott Valley, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.11 in
Chance of precipitation38%
Record high98° (2020)
Record low49° (1970)
Mon, 0783° / 62°0.1
83 °
Prescott Valley, Monday, 7 September
Climate normal for this date — 60-year average.
Average high83°
Average low62°
Average precipitation0.1 in
Chance of precipitation37%
Record high98° (2020)
Record low50° (1985)
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 Prescott Valley, AZ 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 Prescott Valley, AZ 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.