Monthly outlook for Desert Highlands, AZ: average high 99.2°, average low 84.1°. That is 0.7° above the climate normal for August. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 August (110.3°), the coolest 19 August (78°).
99.2°/84.1°
Average high / low
+0.7°
Above normal
5 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
99.5°
98.2°
+0.7°
19 August – 28 August
98.7°
97.8°
+0.5°
29 August – 7 September
at normal
97.3°
—
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 (2 mi).
Mon, 10106° / 81°0.01
106 °
Desert Highlands, Monday, 10 August
Light rain. High 106°, low 81°.
Pressure29.85 inHg
Wind12.5 mph SW
Humidity27%
Visibility6.2 mi
Dew point59°
Tue, 11100° / 80°0.08
100 °
Desert Highlands, Tuesday, 11 August
Light rain. High 100°, low 80°.
Pressure29.88 inHg
Wind9.8 mph SW
Humidity31%
Visibility6.2 mi
Dew point60°
Wed, 1290° / 83°0.2
90 °
Desert Highlands, Wednesday, 12 August
Light rain. High 90°, low 83°.
Pressure29.85 inHg
Wind4.5 mph W
Humidity37%
Visibility6.2 mi
Dew point59°
Thu, 1393° / 79°0.46
93 °
Desert Highlands, Thursday, 13 August
Rain. High 93°, low 79°.
Pressure29.85 inHg
Wind5.2 mph NE
Humidity47%
Visibility—
Dew point62°
Fri, 1496° / 87°0
96 °
Desert Highlands, Friday, 14 August
Overcast. High 96°, low 87°.
Pressure29.88 inHg
Wind8 mph NW
Humidity27%
Visibility—
Dew point52°
Sat, 1599° / 86°0
99 °
Desert Highlands, Saturday, 15 August
Partly cloudy. High 99°, low 86°.
Pressure29.94 inHg
Wind11 mph W
Humidity24%
Visibility—
Dew point51°
Sun, 1699° / 86°0
99 °
Desert Highlands, Sunday, 16 August
Clear. High 99°, low 86°.
Pressure30.00 inHg
Wind11.1 mph W
Humidity21%
Visibility—
Dew point47°
Mon, 17101° / 89°0
101 °
Desert Highlands, Monday, 17 August
Overcast. High 101°, low 89°.
Pressure29.94 inHg
Wind8.9 mph W
Humidity22%
Visibility—
Dew point49°
Tue, 18101° / 87°0
101 °
Desert Highlands, Tuesday, 18 August
Light rain. High 101°, low 87°.
Pressure29.85 inHg
Wind9.9 mph SE
Humidity29%
Visibility—
Dew point56°
Wed, 1999° / 78°0.2
99 °
Desert Highlands, Wednesday, 19 August
Rain. High 99°, low 78°.
Pressure29.88 inHg
Wind32.1 mph SW
Humidity29%
Visibility—
Dew point56°
Thu, 2098° / 78°0.28
98 °
Desert Highlands, Thursday, 20 August
Rain. High 98°, low 78°.
Pressure29.91 inHg
Wind8.4 mph NE
Humidity37%
Visibility—
Dew point59°
Fri, 2197° / 81°0
97 °
Desert Highlands, Friday, 21 August
Partly cloudy. High 97°, low 81°.
Pressure29.88 inHg
Wind8.4 mph W
Humidity33%
Visibility—
Dew point56°
Sat, 22100° / 87°0
100 °
Desert Highlands, Saturday, 22 August
Clear. High 100°, low 87°.
Pressure29.88 inHg
Wind9.1 mph W
Humidity27%
Visibility—
Dew point54°
Sun, 23102° / 89°0
102 °
Desert Highlands, Sunday, 23 August
Mostly clear. High 102°, low 89°.
Pressure29.85 inHg
Wind13.6 mph W
Humidity20%
Visibility—
Dew point48°
Mon, 2496° / 88°0.01
96 °
Desert Highlands, Monday, 24 August
Light rain. High 96°, low 88°.
Pressure29.85 inHg
Wind6.7 mph SE
Humidity27%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2598° / 76°0.03
98 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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 °
Desert Highlands, 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)
Mon, 0796° / 74°0.03
96 °
Desert Highlands, Monday, 7 September
Climate normal for this date — 60-year average.
Average high96°
Average low74°
Average precipitation0.03 in
Chance of precipitation13%
Record high106° (1979)
Record low63° (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 Desert Highlands, 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 Desert Highlands, 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.