Monthly outlook for Mammoth, AZ: average high 73.5°, average low 57°. That is 2.8° below the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 20 October (79.1°), the coolest 18 October (52°).
73.5°/57°
Average high / low
−2.8°
Below normal
4 / 2
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
74.8°
79.5°
-2.6°
22 October – 31 October
71.2°
75.6°
-2.4°
1 November – 10 November
at normal
72.4°
—
October records over 66 years
99.7°1 October 2024All-time high
27.1°30 October 1971All-time low
Climate normals and records are computed from the nearest reference point — San Manuel (7 mi).
Tue, 1374° / 62°0.15
74 °
Mammoth, Tuesday, 13 October
Light rain. High 74°, low 62°.
Pressure29.91 inHg
Wind12 mph SW
Humidity57%
Visibility5.2 mi
Dew point56°
Wed, 1470° / 55°0
70 °
Mammoth, Wednesday, 14 October
Clear. High 70°, low 55°.
Pressure29.97 inHg
Wind3.9 mph NW
Humidity47%
Visibility6.2 mi
Dew point49°
Thu, 1578° / 52°0
78 °
Mammoth, Thursday, 15 October
Clear. High 78°, low 52°.
Pressure29.94 inHg
Wind6.2 mph NE
Humidity35%
Visibility6.2 mi
Dew point42°
Fri, 1672° / 57°0.01
72 °
Mammoth, Friday, 16 October
Light rain. High 72°, low 57°.
Pressure30.06 inHg
Wind27.7 mph SE
Humidity36%
Visibility—
Dew point43°
Sat, 1767° / 54°0.24
67 °
Mammoth, Saturday, 17 October
Rain. High 67°, low 54°.
Pressure30.09 inHg
Wind19.9 mph SE
Humidity55%
Visibility—
Dew point45°
Sun, 1874° / 52°0.02
74 °
Mammoth, Sunday, 18 October
Light rain. High 74°, low 52°.
Pressure30.06 inHg
Wind9.3 mph SE
Humidity41%
Visibility—
Dew point41°
Mon, 1979° / 60°0
79 °
Mammoth, Monday, 19 October
Clear. High 79°, low 60°.
Pressure30.00 inHg
Wind7.2 mph W
Humidity34%
Visibility—
Dew point42°
Tue, 2079° / 63°0
79 °
Mammoth, Tuesday, 20 October
Clear. High 79°, low 63°.
Pressure29.83 inHg
Wind14 mph SW
Humidity29%
Visibility—
Dew point41°
Wed, 2177° / 61°0
77 °
Mammoth, Wednesday, 21 October
Clear. High 77°, low 61°.
Pressure29.94 inHg
Wind11.7 mph N
Humidity35%
Visibility—
Dew point42°
Thu, 2279° / 56°0
79 °
Mammoth, Thursday, 22 October
Overcast. High 79°, low 56°.
Pressure30.06 inHg
Wind16.6 mph E
Humidity14%
Visibility—
Dew point20°
Fri, 2374° / 58°0.04
74 °
Mammoth, Friday, 23 October
Light rain. High 74°, low 58°.
Pressure29.94 inHg
Wind17.2 mph E
Humidity25%
Visibility—
Dew point31°
Sat, 2460° / 55°0.69
60 °
Mammoth, Saturday, 24 October
Rain. High 60°, low 55°.
Pressure29.94 inHg
Wind28.3 mph S
Humidity93%
Visibility—
Dew point55°
Sun, 2571° / 54°0
71 °
Mammoth, Sunday, 25 October
Overcast. High 71°, low 54°.
Pressure29.88 inHg
Wind5.5 mph SW
Humidity64%
Visibility—
Dew point50°
Mon, 2675° / 57°0
75 °
Mammoth, Monday, 26 October
Clear. High 75°, low 57°.
Pressure29.85 inHg
Wind9.7 mph W
Humidity42%
Visibility—
Dew point45°
Tue, 2769° / 57°0
69 °
Mammoth, Tuesday, 27 October
Clear. High 69°, low 57°.
Pressure29.83 inHg
Wind3.7 mph SW
Humidity50%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2875° / 51°0.02
75 °
Mammoth, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.02 in
Chance of precipitation12%
Record high88° (2024)
Record low32° (1970)
Thu, 2975° / 51°0.02
75 °
Mammoth, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high75°
Average low51°
Average precipitation0.02 in
Chance of precipitation12%
Record high87° (2001)
Record low33° (1991)
Fri, 3073° / 50°0.02
73 °
Mammoth, Friday, 30 October
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.02 in
Chance of precipitation7%
Record high88° (2001)
Record low27° (1971)
Sat, 3173° / 49°0.02
73 °
Mammoth, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.02 in
Chance of precipitation7%
Record high87° (2008)
Record low35° (1981)
Sun, 0173° / 50°0.03
73 °
Mammoth, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high73°
Average low50°
Average precipitation0.03 in
Chance of precipitation5%
Record high86° (2008)
Record low31° (1972)
Mon, 0273° / 49°0.03
73 °
Mammoth, Monday, 2 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.03 in
Chance of precipitation7%
Record high85° (2009)
Record low34° (1972)
Tue, 0373° / 48°0.04
73 °
Mammoth, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high73°
Average low48°
Average precipitation0.04 in
Chance of precipitation13%
Record high86° (2020)
Record low35° (1961)
Wed, 0473° / 49°0.05
73 °
Mammoth, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high73°
Average low49°
Average precipitation0.05 in
Chance of precipitation13%
Record high85° (2020)
Record low35° (1974)
Thu, 0574° / 49°0.02
74 °
Mammoth, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.02 in
Chance of precipitation12%
Record high87° (2020)
Record low35° (1994)
Fri, 0674° / 49°0.03
74 °
Mammoth, Friday, 6 November
Climate normal for this date — 60-year average.
Average high74°
Average low49°
Average precipitation0.03 in
Chance of precipitation8%
Record high87° (2020)
Record low38° (1961)
Sat, 0772° / 49°0.02
72 °
Mammoth, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high72°
Average low49°
Average precipitation0.02 in
Chance of precipitation8%
Record high86° (2023)
Record low36° (2008)
Sun, 0872° / 48°0.03
72 °
Mammoth, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high72°
Average low48°
Average precipitation0.03 in
Chance of precipitation8%
Record high84° (2005)
Record low28° (2000)
Mon, 0971° / 47°0.02
71 °
Mammoth, Monday, 9 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0.02 in
Chance of precipitation10%
Record high85° (2005)
Record low29° (2000)
Tue, 1071° / 47°0.02
71 °
Mammoth, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high71°
Average low47°
Average precipitation0.02 in
Chance of precipitation15%
Record high83° (2005)
Record low33° (1998)
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 Mammoth, 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 Mammoth, 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.