Monthly outlook for Deer Valley, AZ: average high 78.5°, average low 65.3°. That is 2° below the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 1 days and 0.4 inches. The warmest day looks like 20 October (89°), the coolest 24 October (55°).
78.5°/65.3°
Average high / low
−2°
Below normal
4 / 1
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
81.2°
83.5°
-1.3°
28 October – 6 November
73.9°
79.3°
-3°
7 November – 16 November
at normal
75.5°
—
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).
Mon, 1983° / 67°0.01
83 °
Deer Valley, Monday, 19 October
Light rain. High 83°, low 67°.
Pressure29.94 inHg
Wind6.6 mph SE
Humidity34%
Visibility6.2 mi
Dew point52°
Tue, 2089° / 70°0
89 °
Deer Valley, Tuesday, 20 October
Clear. High 89°, low 70°.
Pressure29.88 inHg
Wind8.1 mph SE
Humidity32%
Visibility6.2 mi
Dew point54°
Wed, 2183° / 67°0.16
83 °
Deer Valley, Wednesday, 21 October
Light rain. High 83°, low 67°.
Pressure29.91 inHg
Wind9 mph E
Humidity49%
Visibility6.2 mi
Dew point61°
Thu, 2273° / 62°0.48
73 °
Deer Valley, Thursday, 22 October
Rain. High 73°, low 62°.
Pressure29.91 inHg
Wind9.4 mph SE
Humidity78%
Visibility5.4 mi
Dew point64°
Fri, 2375° / 59°0
75 °
Deer Valley, Friday, 23 October
Clear. High 75°, low 59°.
Pressure29.91 inHg
Wind5.8 mph SW
Humidity65%
Visibility—
Dew point58°
Sat, 2483° / 55°0
83 °
Deer Valley, Saturday, 24 October
Clear. High 83°, low 55°.
Pressure30.00 inHg
Wind14.1 mph N
Humidity42%
Visibility—
Dew point46°
Sun, 2581° / 72°0.53
81 °
Deer Valley, Sunday, 25 October
Rain. High 81°, low 72°.
Pressure29.88 inHg
Wind13.9 mph NE
Humidity31%
Visibility—
Dew point44°
Mon, 2681° / 71°0.02
81 °
Deer Valley, Monday, 26 October
Light rain. High 81°, low 71°.
Pressure29.77 inHg
Wind5.9 mph N
Humidity42%
Visibility—
Dew point51°
Tue, 2784° / 73°0
84 °
Deer Valley, Tuesday, 27 October
Clear. High 84°, low 73°.
Pressure29.83 inHg
Wind6.1 mph SE
Humidity32%
Visibility—
Dew point46°
Wed, 2883° / 71°0
83 °
Deer Valley, Wednesday, 28 October
Partly cloudy. High 83°, low 71°.
Pressure29.85 inHg
Wind22.5 mph SW
Humidity35%
Visibility—
Dew point49°
Thu, 2969° / 63°0
69 °
Deer Valley, Thursday, 29 October
Partly cloudy. High 69°, low 63°.
Pressure29.94 inHg
Wind14.2 mph W
Humidity17%
Visibility—
Dew point21°
Fri, 3071° / 62°0
71 °
Deer Valley, Friday, 30 October
Clear. High 71°, low 62°.
Pressure29.94 inHg
Wind9 mph W
Humidity20%
Visibility—
Dew point25°
Sat, 3171° / 60°0
71 °
Deer Valley, Saturday, 31 October
Overcast. High 71°, low 60°.
Pressure30.15 inHg
Wind11.1 mph N
Humidity16%
Visibility—
Dew point19°
Sun, 0175° / 65°0
75 °
Deer Valley, Sunday, 1 November
Overcast. High 75°, low 65°.
Pressure30.09 inHg
Wind7.2 mph NE
Humidity12%
Visibility—
Dew point15°
Mon, 0273° / 63°0.04
73 °
Deer Valley, Monday, 2 November
Light rain. High 73°, low 63°.
Pressure29.88 inHg
Wind5.9 mph W
Humidity30%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0379° / 53°0
79 °
Deer Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0 in
Chance of precipitation7%
Record high94° (2009)
Record low40° (2004)
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)
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.