Monthly outlook for Mount Trumbull, AZ: average high 61.8°, average low 46.1°. That is 1.3° below the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 2 days and 0.5 inches. The warmest day looks like 18 October (67.9°), the coolest 23 October (40.2°).
61.8°/46.1°
Average high / low
−1.3°
Below normal
4 / 2
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
63.4°
65.9°
-1.4°
27 October – 5 November
59.2°
61.1°
-1.1°
6 November – 15 November
at normal
57.2°
—
October records over 66 years
89.1°1 October 2024All-time high
16.9°30 October 2019All-time low
Sun, 1868° / 51°0
68 °
Mount Trumbull, Sunday, 18 October
Mostly clear. High 68°, low 51°.
Pressure30.09 inHg
Wind4.6 mph SW
Humidity45%
Visibility6.2 mi
Dew point41°
Mon, 1966° / 52°0
66 °
Mount Trumbull, Monday, 19 October
Mostly clear. High 66°, low 52°.
Pressure30.00 inHg
Wind6.8 mph S
Humidity49%
Visibility6.2 mi
Dew point45°
Tue, 2066° / 47°0
66 °
Mount Trumbull, Tuesday, 20 October
Light rain. High 66°, low 47°.
Pressure30.00 inHg
Wind11.7 mph S
Humidity46%
Visibility6.2 mi
Dew point43°
Wed, 2168° / 49°0.07
68 °
Mount Trumbull, Wednesday, 21 October
Light rain. High 68°, low 49°.
Pressure29.94 inHg
Wind12.9 mph SE
Humidity52%
Visibility6.2 mi
Dew point48°
Thu, 2265° / 45°0.16
65 °
Mount Trumbull, Thursday, 22 October
Light rain. High 65°, low 45°.
Pressure29.91 inHg
Wind18 mph S
Humidity49%
Visibility—
Dew point41°
Fri, 2357° / 40°0
57 °
Mount Trumbull, Friday, 23 October
Light rain. High 57°, low 40°.
Pressure30.03 inHg
Wind9.9 mph W
Humidity53%
Visibility—
Dew point35°
Sat, 2461° / 45°0
61 °
Mount Trumbull, Saturday, 24 October
Clear. High 61°, low 45°.
Pressure30.09 inHg
Wind22.2 mph NE
Humidity39%
Visibility—
Dew point31°
Sun, 2560° / 46°0
60 °
Mount Trumbull, Sunday, 25 October
Partly cloudy. High 60°, low 46°.
Pressure30.09 inHg
Wind21.4 mph NE
Humidity42%
Visibility—
Dew point33°
Mon, 2659° / 43°0
59 °
Mount Trumbull, Monday, 26 October
Overcast. High 59°, low 43°.
Pressure29.97 inHg
Wind7.3 mph SE
Humidity58%
Visibility—
Dew point38°
Tue, 2764° / 47°0.06
64 °
Mount Trumbull, Tuesday, 27 October
Light rain. High 64°, low 47°.
Pressure29.88 inHg
Wind25.6 mph S
Humidity50%
Visibility—
Dew point39°
Wed, 2855° / 44°0.01
55 °
Mount Trumbull, Wednesday, 28 October
Light rain. High 55°, low 44°.
Pressure29.97 inHg
Wind13.1 mph W
Humidity53%
Visibility—
Dew point36°
Thu, 2959° / 44°0
59 °
Mount Trumbull, Thursday, 29 October
Mostly clear. High 59°, low 44°.
Pressure30.06 inHg
Wind7.2 mph NW
Humidity49%
Visibility—
Dew point35°
Fri, 3059° / 46°0
59 °
Mount Trumbull, Friday, 30 October
Mostly clear. High 59°, low 46°.
Pressure29.88 inHg
Wind19.5 mph SW
Humidity45%
Visibility—
Dew point34°
Sat, 3158° / 46°0
58 °
Mount Trumbull, Saturday, 31 October
Overcast. High 58°, low 46°.
Pressure29.91 inHg
Wind14.4 mph SW
Humidity43%
Visibility—
Dew point31°
Sun, 0160° / 44°0
60 °
Mount Trumbull, Sunday, 1 November
Clear. High 60°, low 44°.
Pressure30.03 inHg
Wind15.1 mph SW
Humidity51%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0261° / 42°0.02
61 °
Mount Trumbull, Monday, 2 November
Climate normal for this date — 60-year average.
Average high61°
Average low42°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (2025)
Record low29° (2004)
Tue, 0361° / 42°0.02
61 °
Mount Trumbull, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high61°
Average low42°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2009)
Record low28° (1971)
Wed, 0461° / 42°0
61 °
Mount Trumbull, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low42°
Average precipitation0 in
Chance of precipitation2%
Record high75° (2009)
Record low23° (2022)
Thu, 0561° / 42°0.01
61 °
Mount Trumbull, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low42°
Average precipitation0.01 in
Chance of precipitation8%
Record high73° (1980)
Record low28° (1974)
Fri, 0660° / 41°0.01
60 °
Mount Trumbull, Friday, 6 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.01 in
Chance of precipitation5%
Record high73° (2007)
Record low25° (2024)
Sat, 0760° / 41°0.02
60 °
Mount Trumbull, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high60°
Average low41°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2006)
Record low24° (2024)
Sun, 0858° / 41°0.05
58 °
Mount Trumbull, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low41°
Average precipitation0.05 in
Chance of precipitation20%
Record high73° (2006)
Record low25° (2011)
Mon, 0958° / 39°0.04
58 °
Mount Trumbull, Monday, 9 November
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (1973)
Record low20° (2020)
Tue, 1057° / 39°0.03
57 °
Mount Trumbull, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low39°
Average precipitation0.03 in
Chance of precipitation12%
Record high71° (1980)
Record low17° (2022)
Wed, 1156° / 38°0.05
56 °
Mount Trumbull, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.05 in
Chance of precipitation15%
Record high71° (1973)
Record low9° (2022)
Thu, 1256° / 38°0.05
56 °
Mount Trumbull, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high72° (1999)
Record low16° (2022)
Fri, 1356° / 38°0.02
56 °
Mount Trumbull, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (1999)
Record low16° (1985)
Sat, 1455° / 38°0.04
55 °
Mount Trumbull, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.04 in
Chance of precipitation13%
Record high71° (1967)
Record low8° (1985)
Sun, 1555° / 37°0.03
55 °
Mount Trumbull, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high55°
Average low37°
Average precipitation0.03 in
Chance of precipitation18%
Record high74° (2016)
Record low17° (1985)
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 Mount Trumbull, 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 Mount Trumbull, 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.