Monthly outlook for Chuichu, AZ: average high 84°, average low 66.7°. That is 0.9° below the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 23 October (91.9°), the coolest 15 October (54.4°).
84°/66.7°
Average high / low
−0.9°
Below normal
3 / 1
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
81.6°
86.9°
-3°
21 October – 30 October
88°
82.5°
+3.1°
31 October – 9 November
at normal
78.9°
—
October records over 66 years
108.9°1 October 2024All-time high
35.6°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Casa Grande (12 mi).
Mon, 1281° / 66°0.07
81 °
Chuichu, Monday, 12 October
Light rain. High 81°, low 66°.
Pressure29.85 inHg
Wind17.7 mph S
Humidity43%
Visibility6.2 mi
Dew point56°
Tue, 1380° / 62°0.18
80 °
Chuichu, Tuesday, 13 October
Rain. High 80°, low 62°.
Pressure29.88 inHg
Wind13.1 mph SW
Humidity46%
Visibility6.2 mi
Dew point56°
Wed, 1474° / 56°0
74 °
Chuichu, Wednesday, 14 October
Clear. High 74°, low 56°.
Pressure29.97 inHg
Wind3.8 mph N
Humidity41%
Visibility6.2 mi
Dew point46°
Thu, 1583° / 54°0
83 °
Chuichu, Thursday, 15 October
Clear. High 83°, low 54°.
Pressure29.91 inHg
Wind10.7 mph N
Humidity36%
Visibility—
Dew point44°
Fri, 1677° / 66°0.13
77 °
Chuichu, Friday, 16 October
Light rain. High 77°, low 66°.
Pressure30.03 inHg
Wind20 mph E
Humidity61%
Visibility—
Dew point59°
Sat, 1780° / 66°0
80 °
Chuichu, Saturday, 17 October
Clear. High 80°, low 66°.
Pressure30.12 inHg
Wind16.4 mph E
Humidity20%
Visibility—
Dew point30°
Sun, 1882° / 64°0
82 °
Chuichu, Sunday, 18 October
Clear. High 82°, low 64°.
Pressure30.06 inHg
Wind9 mph E
Humidity19%
Visibility—
Dew point29°
Mon, 1987° / 68°0
87 °
Chuichu, Monday, 19 October
Clear. High 87°, low 68°.
Pressure30.03 inHg
Wind6.5 mph NW
Humidity25%
Visibility—
Dew point41°
Tue, 2087° / 70°0
87 °
Chuichu, Tuesday, 20 October
Clear. High 87°, low 70°.
Pressure29.94 inHg
Wind7.4 mph N
Humidity20%
Visibility—
Dew point36°
Wed, 2188° / 68°0
88 °
Chuichu, Wednesday, 21 October
Clear. High 88°, low 68°.
Pressure29.88 inHg
Wind6.5 mph N
Humidity17%
Visibility—
Dew point32°
Thu, 2289° / 69°0
89 °
Chuichu, Thursday, 22 October
Clear. High 89°, low 69°.
Pressure29.85 inHg
Wind6.8 mph N
Humidity15%
Visibility—
Dew point29°
Fri, 2392° / 71°0
92 °
Chuichu, Friday, 23 October
Clear. High 92°, low 71°.
Pressure29.85 inHg
Wind9.8 mph N
Humidity18%
Visibility—
Dew point36°
Sat, 2491° / 73°0.02
91 °
Chuichu, Saturday, 24 October
Light rain. High 91°, low 73°.
Pressure29.88 inHg
Wind8 mph NW
Humidity30%
Visibility—
Dew point49°
Sun, 2588° / 73°0
88 °
Chuichu, Sunday, 25 October
Overcast. High 88°, low 73°.
Pressure29.91 inHg
Wind8.3 mph N
Humidity33%
Visibility—
Dew point50°
Mon, 2681° / 72°0
81 °
Chuichu, Monday, 26 October
Overcast. High 81°, low 72°.
Pressure29.85 inHg
Wind15 mph SE
Humidity38%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2782° / 56°0.02
82 °
Chuichu, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.02 in
Chance of precipitation7%
Record high98° (2016)
Record low43° (1971)
Wed, 2882° / 55°0.02
82 °
Chuichu, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.02 in
Chance of precipitation5%
Record high94° (2016)
Record low42° (2020)
Thu, 2981° / 55°0.02
81 °
Chuichu, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high93° (2016)
Record low39° (1991)
Fri, 3080° / 54°0.01
80 °
Chuichu, Friday, 30 October
Climate normal for this date — 60-year average.
Average high80°
Average low54°
Average precipitation0.01 in
Chance of precipitation7%
Record high94° (2016)
Record low36° (1971)
Sat, 3179° / 53°0.01
79 °
Chuichu, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0.01 in
Chance of precipitation7%
Record high91° (1988)
Record low38° (1971)
Sun, 0179° / 53°0
79 °
Chuichu, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high79°
Average low53°
Average precipitation0 in
Chance of precipitation2%
Record high93° (2020)
Record low36° (1972)
Mon, 0280° / 53°0.01
80 °
Chuichu, Monday, 2 November
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high94° (2020)
Record low40° (1971)
Tue, 0380° / 53°0.01
80 °
Chuichu, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high94° (2009)
Record low41° (2004)
Wed, 0479° / 52°0.01
79 °
Chuichu, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high79°
Average low52°
Average precipitation0.01 in
Chance of precipitation5%
Record high94° (2001)
Record low40° (2022)
Thu, 0579° / 52°0.01
79 °
Chuichu, 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 low41° (2022)
Fri, 0680° / 52°0.01
80 °
Chuichu, Friday, 6 November
Climate normal for this date — 60-year average.
Average high80°
Average low52°
Average precipitation0.01 in
Chance of precipitation5%
Record high92° (2007)
Record low44° (2022)
Sat, 0778° / 52°0
78 °
Chuichu, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high78°
Average low52°
Average precipitation0 in
Chance of precipitation2%
Record high90° (2007)
Record low42° (2015)
Sun, 0878° / 52°0.01
78 °
Chuichu, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high78°
Average low52°
Average precipitation0.01 in
Chance of precipitation5%
Record high88° (2006)
Record low38° (2000)
Mon, 0977° / 52°0
77 °
Chuichu, Monday, 9 November
Climate normal for this date — 60-year average.
Average high77°
Average low52°
Average precipitation0 in
Chance of precipitation3%
Record high87° (2025)
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 Chuichu, 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 Chuichu, 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.