Monthly outlook for Happy Valley Ranch, AZ: average high 101.6°, average low 84.8°. That is 2° above the climate normal for August. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 August (110.2°), the coolest 13 August (79°).
101.6°/84.8°
Average high / low
+2°
Above normal
4 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
101°
98.4°
+1.4°
18 August – 27 August
102.5°
97.6°
+2.8°
28 August – 6 September
at normal
97.6°
—
August records over 66 years
113.2°7 August 2025All-time high
60.1°21 August 1979All-time low
Climate normals and records are computed from the nearest reference point — Scottsdale (3 mi).
Sun, 09110° / 85°0.01
110 °
Happy Valley Ranch, Sunday, 9 August
Light rain. High 110°, low 85°.
Pressure29.83 inHg
Wind4.9 mph W
Humidity21%
Visibility6.2 mi
Dew point53°
Mon, 10103° / 83°0.08
103 °
Happy Valley Ranch, Monday, 10 August
Rain. High 103°, low 83°.
Pressure29.85 inHg
Wind9.7 mph W
Humidity30%
Visibility6.2 mi
Dew point61°
Tue, 11100° / 79°0.03
100 °
Happy Valley Ranch, Tuesday, 11 August
Light rain. High 100°, low 79°.
Pressure29.91 inHg
Wind9.6 mph SW
Humidity36%
Visibility6.2 mi
Dew point63°
Wed, 1298° / 83°0.13
98 °
Happy Valley Ranch, Wednesday, 12 August
Light rain. High 98°, low 83°.
Pressure29.85 inHg
Wind9.6 mph W
Humidity35%
Visibility6.2 mi
Dew point61°
Thu, 1396° / 79°0.29
96 °
Happy Valley Ranch, Thursday, 13 August
Rain. High 96°, low 79°.
Pressure29.85 inHg
Wind8.9 mph SW
Humidity41%
Visibility—
Dew point60°
Fri, 1499° / 85°0
99 °
Happy Valley Ranch, Friday, 14 August
Overcast. High 99°, low 85°.
Pressure29.91 inHg
Wind7.7 mph SW
Humidity30%
Visibility—
Dew point55°
Sat, 15102° / 88°0
102 °
Happy Valley Ranch, Saturday, 15 August
Partly cloudy. High 102°, low 88°.
Pressure29.91 inHg
Wind9.3 mph W
Humidity22%
Visibility—
Dew point50°
Sun, 1697° / 84°0.07
97 °
Happy Valley Ranch, Sunday, 16 August
Light rain. High 97°, low 84°.
Pressure30.00 inHg
Wind11.9 mph SE
Humidity24%
Visibility—
Dew point49°
Mon, 1798° / 82°0
98 °
Happy Valley Ranch, Monday, 17 August
Partly cloudy. High 98°, low 82°.
Pressure30.00 inHg
Wind6.9 mph SW
Humidity35%
Visibility—
Dew point58°
Tue, 18103° / 85°0.01
103 °
Happy Valley Ranch, Tuesday, 18 August
Light rain. High 103°, low 85°.
Pressure29.91 inHg
Wind9.1 mph SW
Humidity24%
Visibility—
Dew point53°
Wed, 19104° / 90°0.01
104 °
Happy Valley Ranch, Wednesday, 19 August
Light rain. High 104°, low 90°.
Pressure29.85 inHg
Wind9.4 mph SW
Humidity25%
Visibility—
Dew point55°
Thu, 20103° / 85°0.01
103 °
Happy Valley Ranch, Thursday, 20 August
Light rain. High 103°, low 85°.
Pressure29.85 inHg
Wind15.7 mph W
Humidity26%
Visibility—
Dew point55°
Fri, 21102° / 87°0.02
102 °
Happy Valley Ranch, Friday, 21 August
Light rain. High 102°, low 87°.
Pressure29.83 inHg
Wind9.9 mph SW
Humidity27%
Visibility—
Dew point55°
Sat, 22103° / 88°0.02
103 °
Happy Valley Ranch, Saturday, 22 August
Light rain. High 103°, low 88°.
Pressure29.83 inHg
Wind15.2 mph S
Humidity28%
Visibility—
Dew point57°
Sun, 23101° / 86°0
101 °
Happy Valley Ranch, Sunday, 23 August
Overcast. High 101°, low 86°.
Pressure29.85 inHg
Wind13.8 mph SE
Humidity34%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2498° / 76°0.03
98 °
Happy Valley Ranch, Monday, 24 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation22%
Record high110° (2020)
Record low65° (1992)
Tue, 2598° / 76°0.03
98 °
Happy Valley Ranch, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation25%
Record high108° (2011)
Record low66° (2002)
Wed, 2698° / 76°0.03
98 °
Happy Valley Ranch, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation20%
Record high108° (2001)
Record low66° (1960)
Thu, 2798° / 76°0.04
98 °
Happy Valley Ranch, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.04 in
Chance of precipitation20%
Record high108° (2011)
Record low66° (1992)
Fri, 2899° / 76°0.04
99 °
Happy Valley Ranch, Friday, 28 August
Climate normal for this date — 60-year average.
Average high99°
Average low76°
Average precipitation0.04 in
Chance of precipitation15%
Record high110° (2023)
Record low66° (1978)
Sat, 2999° / 76°0.04
99 °
Happy Valley Ranch, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high99°
Average low76°
Average precipitation0.04 in
Chance of precipitation22%
Record high109° (2023)
Record low66° (1960)
Sun, 3098° / 76°0.02
98 °
Happy Valley Ranch, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.02 in
Chance of precipitation17%
Record high107° (2022)
Record low66° (1992)
Mon, 3198° / 76°0.03
98 °
Happy Valley Ranch, Monday, 31 August
Climate normal for this date — 60-year average.
Average high98°
Average low76°
Average precipitation0.03 in
Chance of precipitation18%
Record high107° (2011)
Record low64° (1962)
Tue, 0197° / 76°0.03
97 °
Happy Valley Ranch, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high97°
Average low76°
Average precipitation0.03 in
Chance of precipitation18%
Record high106° (1982)
Record low64° (1992)
Wed, 0297° / 75°0.04
97 °
Happy Valley Ranch, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.04 in
Chance of precipitation22%
Record high106° (1982)
Record low60° (1992)
Thu, 0398° / 75°0.01
98 °
Happy Valley Ranch, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high98°
Average low75°
Average precipitation0.01 in
Chance of precipitation12%
Record high106° (2022)
Record low63° (1961)
Fri, 0497° / 75°0.06
97 °
Happy Valley Ranch, Friday, 4 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.06 in
Chance of precipitation13%
Record high109° (2020)
Record low60° (1961)
Sat, 0597° / 75°0.1
97 °
Happy Valley Ranch, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high97°
Average low75°
Average precipitation0.1 in
Chance of precipitation22%
Record high110° (2020)
Record low59° (1992)
Sun, 0696° / 75°0.05
96 °
Happy Valley Ranch, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high96°
Average low75°
Average precipitation0.05 in
Chance of precipitation20%
Record high107° (2020)
Record low60° (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 Happy Valley Ranch, 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 Happy Valley Ranch, 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.