Monthly outlook for McCormick Ranch, AZ: average high 86.6°, average low 71.7°. That is 2.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 9 October (102.5°), the coolest 13 October (63°).
86.6°/71.7°
Average high / low
+2.1°
Above normal
3 / 2
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
85.7°
84°
+1°
18 October – 27 October
88.2°
80.1°
+4.5°
28 October – 6 November
at normal
76.1°
—
October records over 66 years
106.2°1 October 2024All-time high
32.4°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Scottsdale (10 mi).
Fri, 09103° / 76°0
103 °
McCormick Ranch, Friday, 9 October
Mostly clear. High 103°, low 76°.
Pressure29.74 inHg
Wind8.3 mph SE
Humidity15%
Visibility6.2 mi
Dew point45°
Sat, 1090° / 76°0.02
90 °
McCormick Ranch, Saturday, 10 October
Light rain. High 90°, low 76°.
Pressure29.68 inHg
Wind9.9 mph SE
Humidity27%
Visibility6.2 mi
Dew point52°
Sun, 1187° / 69°0.28
87 °
McCormick Ranch, Sunday, 11 October
Rain. High 87°, low 69°.
Pressure29.65 inHg
Wind7.7 mph S
Humidity53%
Visibility6.2 mi
Dew point62°
Mon, 1283° / 68°0.06
83 °
McCormick Ranch, Monday, 12 October
Light rain. High 83°, low 68°.
Pressure29.80 inHg
Wind8.4 mph S
Humidity65%
Visibility—
Dew point62°
Tue, 1372° / 63°0.31
72 °
McCormick Ranch, Tuesday, 13 October
Rain. High 72°, low 63°.
Pressure29.94 inHg
Wind15 mph S
Humidity49%
Visibility—
Dew point49°
Wed, 1474° / 66°0
74 °
McCormick Ranch, Wednesday, 14 October
Clear. High 74°, low 66°.
Pressure29.88 inHg
Wind14.6 mph S
Humidity39%
Visibility—
Dew point44°
Thu, 1579° / 67°0
79 °
McCormick Ranch, Thursday, 15 October
Clear. High 79°, low 67°.
Pressure29.97 inHg
Wind6.1 mph NE
Humidity26%
Visibility—
Dew point37°
Fri, 1682° / 71°0
82 °
McCormick Ranch, Friday, 16 October
Clear. High 82°, low 71°.
Pressure30.00 inHg
Wind4.4 mph NW
Humidity32%
Visibility—
Dew point44°
Sat, 1785° / 69°0
85 °
McCormick Ranch, Saturday, 17 October
Clear. High 85°, low 69°.
Pressure29.94 inHg
Wind13 mph NE
Humidity25%
Visibility—
Dew point38°
Sun, 1887° / 66°0
87 °
McCormick Ranch, Sunday, 18 October
Clear. High 87°, low 66°.
Pressure29.91 inHg
Wind11.1 mph NE
Humidity17%
Visibility—
Dew point29°
Mon, 1989° / 72°0
89 °
McCormick Ranch, Monday, 19 October
Clear. High 89°, low 72°.
Pressure29.91 inHg
Wind9.4 mph NE
Humidity29%
Visibility—
Dew point47°
Tue, 2092° / 76°0
92 °
McCormick Ranch, Tuesday, 20 October
Clear. High 92°, low 76°.
Pressure29.91 inHg
Wind6.4 mph NE
Humidity29%
Visibility—
Dew point49°
Wed, 2191° / 79°0
91 °
McCormick Ranch, Wednesday, 21 October
Clear. High 91°, low 79°.
Pressure29.85 inHg
Wind11.5 mph W
Humidity26%
Visibility—
Dew point46°
Thu, 2287° / 77°0
87 °
McCormick Ranch, Thursday, 22 October
Clear. High 87°, low 77°.
Pressure29.80 inHg
Wind6.8 mph SW
Humidity17%
Visibility—
Dew point33°
Fri, 2384° / 73°0
84 °
McCormick Ranch, Friday, 23 October
Mostly clear. High 84°, low 73°.
Pressure29.77 inHg
Wind7 mph SW
Humidity23%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2480° / 56°0.04
80 °
McCormick Ranch, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.04 in
Chance of precipitation12%
Record high92° (2017)
Record low40° (1975)
Sun, 2580° / 55°0.02
80 °
McCormick Ranch, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high80°
Average low55°
Average precipitation0.02 in
Chance of precipitation8%
Record high92° (2024)
Record low41° (1975)
Mon, 2678° / 54°0.02
78 °
McCormick Ranch, Monday, 26 October
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.02 in
Chance of precipitation8%
Record high95° (2024)
Record low41° (1971)
Tue, 2778° / 54°0.04
78 °
McCormick Ranch, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.04 in
Chance of precipitation12%
Record high93° (2016)
Record low41° (1971)
Wed, 2878° / 53°0.03
78 °
McCormick Ranch, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high78°
Average low53°
Average precipitation0.03 in
Chance of precipitation8%
Record high91° (2007)
Record low40° (1970)
Thu, 2977° / 53°0.04
77 °
McCormick Ranch, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.04 in
Chance of precipitation10%
Record high89° (1966)
Record low38° (2009)
Fri, 3076° / 52°0.03
76 °
McCormick Ranch, Friday, 30 October
Climate normal for this date — 60-year average.
Average high76°
Average low52°
Average precipitation0.03 in
Chance of precipitation10%
Record high88° (2008)
Record low32° (1971)
Sat, 3175° / 51°0.01
75 °
McCormick Ranch, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.01 in
Chance of precipitation5%
Record high89° (1988)
Record low35° (1971)
Sun, 0176° / 51°0.04
76 °
McCormick Ranch, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.04 in
Chance of precipitation8%
Record high91° (2020)
Record low36° (1972)
Mon, 0276° / 51°0.02
76 °
McCormick Ranch, Monday, 2 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.02 in
Chance of precipitation5%
Record high90° (2020)
Record low39° (1972)
Tue, 0376° / 51°0.02
76 °
McCormick Ranch, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.02 in
Chance of precipitation12%
Record high91° (2009)
Record low38° (2004)
Wed, 0476° / 51°0.01
76 °
McCormick Ranch, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high76°
Average low51°
Average precipitation0.01 in
Chance of precipitation5%
Record high89° (2001)
Record low40° (2004)
Thu, 0576° / 50°0.02
76 °
McCormick Ranch, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high76°
Average low50°
Average precipitation0.02 in
Chance of precipitation5%
Record high93° (2020)
Record low40° (2003)
Fri, 0676° / 50°0.02
76 °
McCormick Ranch, Friday, 6 November
Climate normal for this date — 60-year average.
Average high76°
Average low50°
Average precipitation0.02 in
Chance of precipitation7%
Record high89° (1999)
Record low41° (2011)
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 McCormick 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 McCormick 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.