Monthly outlook for Peterson, AZ: average high 85.6°, average low 70.3°. That is 0.4° below the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 1 days and 0.5 inches. The warmest day looks like 23 October (93.9°), the coolest 14 October (56.6°).
85.6°/70.3°
Average high / low
−0.4°
Below normal
3 / 1
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
82.2°
87.6°
-3°
20 October – 29 October
91.1°
83.2°
+4.4°
30 October – 8 November
at normal
79.3°
—
October records over 66 years
110.5°1 October 2024All-time high
33.3°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Tempe (1 mi).
Sun, 1183° / 69°0.45
83 °
Peterson, Sunday, 11 October
Rain. High 83°, low 69°.
Pressure29.71 inHg
Wind12.3 mph S
Humidity43%
Visibility4.1 mi
Dew point59°
Mon, 1279° / 67°0.3
79 °
Peterson, Monday, 12 October
Rain. High 79°, low 67°.
Pressure29.85 inHg
Wind9.5 mph S
Humidity50%
Visibility6.2 mi
Dew point58°
Tue, 1376° / 62°0.1
76 °
Peterson, Tuesday, 13 October
Light rain. High 76°, low 62°.
Pressure29.91 inHg
Wind5.1 mph SW
Humidity60%
Visibility6.2 mi
Dew point59°
Wed, 1473° / 57°0
73 °
Peterson, Wednesday, 14 October
Clear. High 73°, low 57°.
Pressure29.97 inHg
Wind1.1 mph NW
Humidity48%
Visibility6.2 mi
Dew point49°
Thu, 1581° / 57°0
81 °
Peterson, Thursday, 15 October
Clear. High 81°, low 57°.
Pressure29.94 inHg
Wind3.7 mph NW
Humidity43%
Visibility—
Dew point47°
Fri, 1687° / 61°0
87 °
Peterson, Friday, 16 October
Overcast. High 87°, low 61°.
Pressure30.00 inHg
Wind13.6 mph SE
Humidity32%
Visibility—
Dew point46°
Sat, 1782° / 71°0
82 °
Peterson, Saturday, 17 October
Clear. High 82°, low 71°.
Pressure30.18 inHg
Wind20.8 mph E
Humidity14%
Visibility—
Dew point24°
Sun, 1883° / 68°0
83 °
Peterson, Sunday, 18 October
Clear. High 83°, low 68°.
Pressure30.12 inHg
Wind11.6 mph E
Humidity13%
Visibility—
Dew point22°
Mon, 1986° / 71°0
86 °
Peterson, Monday, 19 October
Mostly clear. High 86°, low 71°.
Pressure30.06 inHg
Wind4.8 mph E
Humidity18%
Visibility—
Dew point31°
Tue, 2088° / 75°0
88 °
Peterson, Tuesday, 20 October
Clear. High 88°, low 75°.
Pressure29.97 inHg
Wind4.9 mph NE
Humidity18%
Visibility—
Dew point34°
Wed, 2190° / 77°0
90 °
Peterson, Wednesday, 21 October
Clear. High 90°, low 77°.
Pressure29.94 inHg
Wind5.1 mph NE
Humidity18%
Visibility—
Dew point36°
Thu, 2292° / 79°0
92 °
Peterson, Thursday, 22 October
Clear. High 92°, low 79°.
Pressure29.97 inHg
Wind5.4 mph NW
Humidity18%
Visibility—
Dew point38°
Fri, 2394° / 80°0
94 °
Peterson, Friday, 23 October
Mostly clear. High 94°, low 80°.
Pressure29.94 inHg
Wind6.5 mph SE
Humidity21%
Visibility—
Dew point43°
Sat, 2494° / 80°0
94 °
Peterson, Saturday, 24 October
Light rain. High 94°, low 80°.
Pressure29.85 inHg
Wind19.5 mph SE
Humidity23%
Visibility—
Dew point45°
Sun, 2588° / 78°0.03
88 °
Peterson, Sunday, 25 October
Light rain. High 88°, low 78°.
Pressure29.83 inHg
Wind9.9 mph E
Humidity30%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2682° / 56°0.01
82 °
Peterson, Monday, 26 October
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.01 in
Chance of precipitation3%
Record high98° (2024)
Record low44° (1997)
Tue, 2782° / 56°0.03
82 °
Peterson, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.03 in
Chance of precipitation7%
Record high98° (2016)
Record low43° (1971)
Wed, 2882° / 55°0.03
82 °
Peterson, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.03 in
Chance of precipitation7%
Record high95° (2007)
Record low43° (1970)
Thu, 2981° / 55°0.03
81 °
Peterson, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.03 in
Chance of precipitation8%
Record high93° (1966)
Record low41° (1991)
Fri, 3080° / 54°0.02
80 °
Peterson, Friday, 30 October
Climate normal for this date — 60-year average.
Average high80°
Average low54°
Average precipitation0.02 in
Chance of precipitation10%
Record high92° (2016)
Record low33° (1971)
Sat, 3179° / 53°0.01
79 °
Peterson, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high93° (1988)
Record low37° (1971)
Sun, 0180° / 53°0.02
80 °
Peterson, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.02 in
Chance of precipitation3%
Record high95° (2020)
Record low38° (1972)
Mon, 0280° / 53°0.02
80 °
Peterson, Monday, 2 November
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.02 in
Chance of precipitation5%
Record high94° (2020)
Record low39° (1971)
Tue, 0380° / 53°0
80 °
Peterson, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0 in
Chance of precipitation8%
Record high94° (2009)
Record low39° (2004)
Wed, 0480° / 52°0
80 °
Peterson, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high80°
Average low52°
Average precipitation0 in
Chance of precipitation3%
Record high94° (2001)
Record low41° (2022)
Thu, 0580° / 52°0.01
80 °
Peterson, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high80°
Average low52°
Average precipitation0.01 in
Chance of precipitation3%
Record high97° (2020)
Record low43° (1990)
Fri, 0680° / 51°0.02
80 °
Peterson, Friday, 6 November
Climate normal for this date — 60-year average.
Average high80°
Average low51°
Average precipitation0.02 in
Chance of precipitation7%
Record high93° (2007)
Record low42° (2015)
Sat, 0778° / 52°0
78 °
Peterson, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high78°
Average low52°
Average precipitation0 in
Chance of precipitation5%
Record high91° (2007)
Record low43° (1990)
Sun, 0878° / 52°0.02
78 °
Peterson, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high78°
Average low52°
Average precipitation0.02 in
Chance of precipitation5%
Record high89° (2016)
Record low38° (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 Peterson, 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 Peterson, 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.