Monthly outlook for Arrowhead Ranch, AZ: average high 105.4°, average low 89.6°. That is 1.8° above the climate normal for August. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 9 August (114°), the coolest 13 August (83.5°).
105.4°/89.6°
Average high / low
+1.8°
Above normal
5 / 2
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
104.7°
102.5°
+1.2°
18 August – 27 August
106.5°
101.6°
+2.7°
28 August – 6 September
at normal
101.5°
—
August records over 66 years
118°7 August 2025All-time high
63.1°21 August 1979All-time low
Climate normals and records are computed from the nearest reference point — Glendale (7 mi).
Sun, 09114° / 88°0
114 °
Arrowhead Ranch, Sunday, 9 August
Clear. High 114°, low 88°.
Pressure29.80 inHg
Wind3.4 mph W
Humidity20%
Visibility6.2 mi
Dew point54°
Mon, 10107° / 87°0.04
107 °
Arrowhead Ranch, Monday, 10 August
Light rain. High 107°, low 87°.
Pressure29.83 inHg
Wind8.2 mph SW
Humidity26%
Visibility6.2 mi
Dew point60°
Tue, 11103° / 86°0.02
103 °
Arrowhead Ranch, Tuesday, 11 August
Light rain. High 103°, low 86°.
Pressure29.88 inHg
Wind7.4 mph W
Humidity34%
Visibility6.2 mi
Dew point64°
Wed, 12101° / 87°0.12
101 °
Arrowhead Ranch, Wednesday, 12 August
Light rain. High 101°, low 87°.
Pressure29.83 inHg
Wind8.3 mph SW
Humidity32%
Visibility6.2 mi
Dew point62°
Thu, 1399° / 84°0.42
99 °
Arrowhead Ranch, Thursday, 13 August
Rain. High 99°, low 84°.
Pressure29.85 inHg
Wind8.2 mph W
Humidity41%
Visibility—
Dew point63°
Fri, 14103° / 90°0
103 °
Arrowhead Ranch, Friday, 14 August
Clear. High 103°, low 90°.
Pressure29.88 inHg
Wind10 mph W
Humidity23%
Visibility—
Dew point51°
Sat, 15107° / 92°0
107 °
Arrowhead Ranch, Saturday, 15 August
Partly cloudy. High 107°, low 92°.
Pressure29.91 inHg
Wind13 mph W
Humidity21%
Visibility—
Dew point51°
Sun, 16102° / 88°0.13
102 °
Arrowhead Ranch, Sunday, 16 August
Light rain. High 102°, low 88°.
Pressure29.97 inHg
Wind19.6 mph SE
Humidity24%
Visibility—
Dew point53°
Mon, 17101° / 85°0
101 °
Arrowhead Ranch, Monday, 17 August
Partly cloudy. High 101°, low 85°.
Pressure29.97 inHg
Wind9.8 mph N
Humidity33%
Visibility—
Dew point58°
Tue, 18106° / 92°0
106 °
Arrowhead Ranch, Tuesday, 18 August
Clear. High 106°, low 92°.
Pressure29.88 inHg
Wind8.1 mph N
Humidity24%
Visibility—
Dew point56°
Wed, 19109° / 94°0
109 °
Arrowhead Ranch, Wednesday, 19 August
Light rain. High 109°, low 94°.
Pressure29.85 inHg
Wind11.3 mph SW
Humidity25%
Visibility—
Dew point58°
Thu, 20105° / 94°0
105 °
Arrowhead Ranch, Thursday, 20 August
Overcast. High 105°, low 94°.
Pressure29.85 inHg
Wind14.1 mph W
Humidity25%
Visibility—
Dew point56°
Fri, 21107° / 93°0.04
107 °
Arrowhead Ranch, Friday, 21 August
Light rain. High 107°, low 93°.
Pressure29.80 inHg
Wind13.7 mph N
Humidity25%
Visibility—
Dew point57°
Sat, 22107° / 92°0.03
107 °
Arrowhead Ranch, Saturday, 22 August
Light rain. High 107°, low 92°.
Pressure29.80 inHg
Wind23.5 mph SE
Humidity25%
Visibility—
Dew point57°
Sun, 23104° / 90°0.01
104 °
Arrowhead Ranch, Sunday, 23 August
Light rain. High 104°, low 90°.
Pressure29.85 inHg
Wind14 mph SE
Humidity32%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 24102° / 80°0.02
102 °
Arrowhead Ranch, Monday, 24 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high114° (2020)
Record low67° (1992)
Tue, 25101° / 80°0.04
101 °
Arrowhead Ranch, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high101°
Average low80°
Average precipitation0.04 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1990)
Wed, 26102° / 80°0.03
102 °
Arrowhead Ranch, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation15%
Record high112° (2001)
Record low69° (1960)
Thu, 27102° / 80°0.04
102 °
Arrowhead Ranch, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.04 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1992)
Fri, 28103° / 80°0.02
103 °
Arrowhead Ranch, Friday, 28 August
Climate normal for this date — 60-year average.
Average high103°
Average low80°
Average precipitation0.02 in
Chance of precipitation7%
Record high114° (2023)
Record low70° (1992)
Sat, 29103° / 80°0.03
103 °
Arrowhead Ranch, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high103°
Average low80°
Average precipitation0.03 in
Chance of precipitation10%
Record high113° (2023)
Record low71° (1960)
Sun, 30102° / 80°0.03
102 °
Arrowhead Ranch, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation15%
Record high111° (2011)
Record low70° (1992)
Mon, 31102° / 80°0.02
102 °
Arrowhead Ranch, Monday, 31 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high111° (2011)
Record low68° (1962)
Tue, 01101° / 80°0.02
101 °
Arrowhead Ranch, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high101°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high110° (1982)
Record low65° (1992)
Wed, 02101° / 79°0.06
101 °
Arrowhead Ranch, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.06 in
Chance of precipitation13%
Record high110° (1982)
Record low64° (1992)
Thu, 03102° / 79°0.01
102 °
Arrowhead Ranch, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.01 in
Chance of precipitation5%
Record high109° (2022)
Record low66° (1992)
Fri, 04101° / 78°0.06
101 °
Arrowhead Ranch, Friday, 4 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.06 in
Chance of precipitation10%
Record high112° (2020)
Record low65° (1999)
Sat, 05100° / 78°0.08
100 °
Arrowhead Ranch, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.08 in
Chance of precipitation18%
Record high114° (2020)
Record low62° (1992)
Sun, 06100° / 78°0.04
100 °
Arrowhead Ranch, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.04 in
Chance of precipitation15%
Record high112° (2020)
Record low62° (1970)
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 Arrowhead 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 Arrowhead 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.