As of 03:02 MST

Weather in Summit, AZ

73°Current weather

Summit, Wednesday, 7 October, 03:02

Clear. Feels like 73°. High 95°, low 72°.

Pressure29.91 inHg
Wind3.4 mph SE
Humidity52%
Visibility6.2 mi
Dew point55°

Monthly outlook for Summit, AZ: average high 86.2°, average low 67.7°. That is 1.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 1 days and 0.5 inches. The warmest day looks like 8 October (98.8°), the coolest 15 October (57.5°).

86.2°/67.7°
Average high / low
+1.3°
Above normal
2 / 1
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October86.8°84.8°+1.1°
17 October – 26 October85.1°81.4°+2°
27 October – 5 Novemberat normal77.3°—

October records over 66 years

104.4°1 October 2024All-time high
29.1°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Tucson (8 mi).

Thu, 0899° / 72°0Clear
99 °Clear

Summit, Thursday, 8 October

Clear. High 99°, low 72°.

Pressure29.80 inHg
Wind6.3 mph E
Humidity14%
Visibility6.2 mi
Dew point41°
Fri, 0998° / 77°0Mostly clear
98 °Mostly clear

Summit, Friday, 9 October

Mostly clear. High 98°, low 77°.

Pressure29.74 inHg
Wind5.7 mph SE
Humidity14%
Visibility6.2 mi
Dew point40°
Sat, 1092° / 74°0Overcast
92 °Overcast

Summit, Saturday, 10 October

Overcast. High 92°, low 74°.

Pressure29.68 inHg
Wind6.8 mph S
Humidity21%
Visibility6.2 mi
Dew point46°
Sun, 1185° / 73°0.01Light rain
85 °Light rain

Summit, Sunday, 11 October

Light rain. High 85°, low 73°.

Pressure29.71 inHg
Wind21.8 mph S
Humidity33%
Visibility—
Dew point51°
Mon, 1281° / 65°0.01Light rain
81 °Light rain

Summit, Monday, 12 October

Light rain. High 81°, low 65°.

Pressure29.83 inHg
Wind11.3 mph SW
Humidity46%
Visibility—
Dew point55°
Tue, 1383° / 65°0.04Light rain
83 °Light rain

Summit, Tuesday, 13 October

Light rain. High 83°, low 65°.

Pressure29.80 inHg
Wind21.1 mph SW
Humidity51%
Visibility—
Dew point56°
Wed, 1470° / 61°0.04Light rain
70 °Light rain

Summit, Wednesday, 14 October

Light rain. High 70°, low 61°.

Pressure29.91 inHg
Wind11 mph SW
Humidity39%
Visibility—
Dew point42°
Thu, 1577° / 57°0Clear
77 °Clear

Summit, Thursday, 15 October

Clear. High 77°, low 57°.

Pressure30.03 inHg
Wind7.8 mph NW
Humidity31%
Visibility—
Dew point38°
Fri, 1687° / 62°0Clear
87 °Clear

Summit, Friday, 16 October

Clear. High 87°, low 62°.

Pressure30.03 inHg
Wind21.5 mph SE
Humidity18%
Visibility—
Dew point32°
Sat, 1780° / 66°0Clear
80 °Clear

Summit, Saturday, 17 October

Clear. High 80°, low 66°.

Pressure30.03 inHg
Wind32.6 mph E
Humidity27%
Visibility—
Dew point38°
Sun, 1885° / 62°0Clear
85 °Clear

Summit, Sunday, 18 October

Clear. High 85°, low 62°.

Pressure29.97 inHg
Wind12 mph E
Humidity25%
Visibility—
Dew point38°
Mon, 1987° / 67°0Clear
87 °Clear

Summit, Monday, 19 October

Clear. High 87°, low 67°.

Pressure29.97 inHg
Wind11.6 mph W
Humidity27%
Visibility—
Dew point43°
Tue, 2087° / 69°0Overcast
87 °Overcast

Summit, Tuesday, 20 October

Overcast. High 87°, low 69°.

Pressure30.00 inHg
Wind13.8 mph SW
Humidity34%
Visibility—
Dew point49°
Wed, 2185° / 69°0Overcast
85 °Overcast

Summit, Wednesday, 21 October

Overcast. High 85°, low 69°.

Pressure30.00 inHg
Wind7 mph SW
Humidity32%
Visibility—
Dew point47°
Thu, 2286° / 71°0Overcast
86 °Overcast

Summit, Thursday, 22 October

Overcast. High 86°, low 71°.

Pressure29.85 inHg
Wind15.3 mph E
Humidity33%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2381° / 55°0.03Climate normal
81 °Climate normal

Summit, Friday, 23 October

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.03 in
Chance of precipitation10%
Record high99° (2024)
Record low42° (1969)
Sat, 2481° / 55°0.02Climate normal
81 °Climate normal

Summit, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high94° (2024)
Record low43° (1975)
Sun, 2581° / 55°0.01Climate normal
81 °Climate normal

Summit, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high81°
Average low55°
Average precipitation0.01 in
Chance of precipitation5%
Record high97° (2024)
Record low41° (1975)
Mon, 2680° / 54°0.02Climate normal
80 °Climate normal

Summit, Monday, 26 October

Climate normal for this date — 60-year average.

Average high80°
Average low54°
Average precipitation0.02 in
Chance of precipitation7%
Record high99° (2024)
Record low39° (1997)
Tue, 2778° / 53°0.02Climate normal
78 °Climate normal

Summit, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high78°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high98° (2024)
Record low36° (2020)
Wed, 2879° / 53°0.01Climate normal
79 °Climate normal

Summit, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high79°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high90° (2016)
Record low38° (1970)
Thu, 2978° / 53°0.02Climate normal
78 °Climate normal

Summit, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high78°
Average low53°
Average precipitation0.02 in
Chance of precipitation7%
Record high91° (2010)
Record low37° (1991)
Fri, 3077° / 51°0.01Climate normal
77 °Climate normal

Summit, Friday, 30 October

Climate normal for this date — 60-year average.

Average high77°
Average low51°
Average precipitation0.01 in
Chance of precipitation5%
Record high91° (2001)
Record low29° (1971)
Sat, 3176° / 50°0.01Climate normal
76 °Climate normal

Summit, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high76°
Average low50°
Average precipitation0.01 in
Chance of precipitation5%
Record high89° (2014)
Record low37° (1971)
Sun, 0177° / 50°0.01Climate normal
77 °Climate normal

Summit, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high77°
Average low50°
Average precipitation0.01 in
Chance of precipitation3%
Record high89° (2020)
Record low34° (1972)
Mon, 0277° / 50°0.01Climate normal
77 °Climate normal

Summit, Monday, 2 November

Climate normal for this date — 60-year average.

Average high77°
Average low50°
Average precipitation0.01 in
Chance of precipitation7%
Record high90° (2020)
Record low35° (1972)
Tue, 0377° / 50°0.02Climate normal
77 °Climate normal

Summit, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high77°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high91° (2025)
Record low37° (2004)
Wed, 0476° / 50°0.02Climate normal
76 °Climate normal

Summit, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high76°
Average low50°
Average precipitation0.02 in
Chance of precipitation8%
Record high89° (2001)
Record low38° (1974)
Thu, 0577° / 50°0.01Climate normal
77 °Climate normal

Summit, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high77°
Average low50°
Average precipitation0.01 in
Chance of precipitation3%
Record high93° (2020)
Record low38° (1990)

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 Summit, 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 Summit, 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.