Monthly outlook for Deer Valley, AZ: average high 82.4°, average low 68.1°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 20 October (89.8°), the coolest 25 October (55.8°).
82.4°/68.1°
Average high / low
+0.5°
Above normal
4 / 1
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
82.8°
83°
-0.1°
29 October – 7 November
81.6°
79°
+1.5°
8 November – 17 November
at normal
74.9°
—
October records over 66 years
109.4°1 October 2024All-time high
35.1°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Phoenix (8 mi).
Tue, 2090° / 67°0
90 °
Deer Valley, Tuesday, 20 October
Partly cloudy. High 90°, low 67°.
Pressure29.91 inHg
Wind7.4 mph SE
Humidity38%
Visibility6.2 mi
Dew point56°
Wed, 2185° / 71°0.06
85 °
Deer Valley, Wednesday, 21 October
Light rain. High 85°, low 71°.
Pressure29.94 inHg
Wind7.6 mph E
Humidity51%
Visibility6.2 mi
Dew point61°
Thu, 2278° / 65°0.38
78 °
Deer Valley, Thursday, 22 October
Rain. High 78°, low 65°.
Pressure29.88 inHg
Wind11.1 mph E
Humidity59%
Visibility6.2 mi
Dew point63°
Fri, 2376° / 60°0
76 °
Deer Valley, Friday, 23 October
Mostly clear. High 76°, low 60°.
Pressure29.88 inHg
Wind4.9 mph S
Humidity54%
Visibility6.2 mi
Dew point56°
Sat, 2473° / 58°0.08
73 °
Deer Valley, Saturday, 24 October
Light rain. High 73°, low 58°.
Pressure29.94 inHg
Wind6.7 mph NE
Humidity60%
Visibility—
Dew point53°
Sun, 2584° / 56°0
84 °
Deer Valley, Sunday, 25 October
Clear. High 84°, low 56°.
Pressure30.00 inHg
Wind8.9 mph NE
Humidity36%
Visibility—
Dew point44°
Mon, 2687° / 73°0
87 °
Deer Valley, Monday, 26 October
Clear. High 87°, low 73°.
Pressure29.91 inHg
Wind9.3 mph NE
Humidity27%
Visibility—
Dew point44°
Tue, 2788° / 74°0
88 °
Deer Valley, Tuesday, 27 October
Clear. High 88°, low 74°.
Pressure29.94 inHg
Wind20.3 mph E
Humidity21%
Visibility—
Dew point38°
Wed, 2882° / 74°0
82 °
Deer Valley, Wednesday, 28 October
Overcast. High 82°, low 74°.
Pressure30.00 inHg
Wind19.9 mph E
Humidity33%
Visibility—
Dew point47°
Thu, 2982° / 71°0
82 °
Deer Valley, Thursday, 29 October
Partly cloudy. High 82°, low 71°.
Pressure29.97 inHg
Wind9 mph E
Humidity36%
Visibility—
Dew point47°
Fri, 3084° / 76°0.02
84 °
Deer Valley, Friday, 30 October
Light rain. High 84°, low 76°.
Pressure29.88 inHg
Wind11.8 mph S
Humidity32%
Visibility—
Dew point48°
Sat, 3180° / 70°0.35
80 °
Deer Valley, Saturday, 31 October
Rain. High 80°, low 70°.
Pressure29.91 inHg
Wind10.4 mph SW
Humidity55%
Visibility—
Dew point57°
Sun, 0179° / 71°0
79 °
Deer Valley, Sunday, 1 November
Clear. High 79°, low 71°.
Pressure30.09 inHg
Wind5.2 mph NW
Humidity30%
Visibility—
Dew point42°
Mon, 0283° / 70°0
83 °
Deer Valley, Monday, 2 November
Clear. High 83°, low 70°.
Pressure30.09 inHg
Wind7.1 mph NE
Humidity22%
Visibility—
Dew point35°
Tue, 0382° / 72°0
82 °
Deer Valley, Tuesday, 3 November
Overcast. High 82°, low 72°.
Pressure29.94 inHg
Wind6 mph NE
Humidity26%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0479° / 53°0
79 °
Deer Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0 in
Chance of precipitation3%
Record high93° (2001)
Record low40° (2022)
Thu, 0579° / 52°0.01
79 °
Deer Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high79°
Average low52°
Average precipitation0.01 in
Chance of precipitation3%
Record high96° (2020)
Record low42° (2022)
Fri, 0679° / 53°0.02
79 °
Deer Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high92° (1999)
Record low44° (2011)
Sat, 0778° / 53°0
78 °
Deer Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high78°
Average low53°
Average precipitation0 in
Chance of precipitation5%
Record high90° (2007)
Record low41° (1990)
Sun, 0877° / 52°0.02
77 °
Deer Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high77°
Average low52°
Average precipitation0.02 in
Chance of precipitation5%
Record high89° (2016)
Record low38° (2000)
Mon, 0976° / 52°0.01
76 °
Deer Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.01 in
Chance of precipitation8%
Record high89° (2025)
Record low39° (2000)
Tue, 1076° / 51°0.01
76 °
Deer Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.01 in
Chance of precipitation8%
Record high89° (2009)
Record low39° (1998)
Wed, 1176° / 51°0.04
76 °
Deer Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.04 in
Chance of precipitation12%
Record high90° (1999)
Record low39° (2012)
Thu, 1275° / 51°0.04
75 °
Deer Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.04 in
Chance of precipitation10%
Record high91° (1999)
Record low38° (2000)
Fri, 1375° / 51°0.02
75 °
Deer Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.02 in
Chance of precipitation8%
Record high89° (1999)
Record low36° (2000)
Sat, 1474° / 50°0.04
74 °
Deer Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high74°
Average low50°
Average precipitation0.04 in
Chance of precipitation8%
Record high89° (1999)
Record low36° (1985)
Sun, 1574° / 49°0.03
74 °
Deer Valley, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.03 in
Chance of precipitation12%
Record high89° (1999)
Record low36° (1985)
Mon, 1673° / 49°0.01
73 °
Deer Valley, Monday, 16 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.01 in
Chance of precipitation7%
Record high90° (2020)
Record low35° (2000)
Tue, 1773° / 48°0.02
73 °
Deer Valley, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high73°
Average low48°
Average precipitation0.02 in
Chance of precipitation5%
Record high90° (2020)
Record low34° (1964)
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 Deer 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 Deer 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.