As of 03:30 MST

Weather in Arivaca, AZ

55°Current weather

Arivaca, Sunday, 18 October, 03:30

Clear. Feels like 53°. High 80°, low 55°.

Pressure30.03 inHg
Wind5.9 mph SE
Humidity46%
Visibility6.2 mi
Dew point35°

Monthly outlook for Arivaca, AZ: average high 76.3°, average low 58.9°. That is 0.3° below the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 1 days and 0.3 inches. The warmest day looks like 20 October (84.7°), the coolest 23 October (54.1°).

76.3°/58.9°
Average high / low
−0.3°
Below normal
5 / 1
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October77.9°78.1°-0.1°
28 October – 6 November73.7°74.8°-0.6°
7 November – 16 Novemberat normal71.8°—

October records over 66 years

100.8°6 October 2024All-time high
31.8°30 October 1971All-time low

Climate normals and records are computed from the nearest reference point — Casa Piedra (13 mi).

Mon, 1981° / 64°0.04Light rain
81 °Light rain

Arivaca, Monday, 19 October

Light rain. High 81°, low 64°.

Pressure29.94 inHg
Wind12.1 mph SW
Humidity39%
Visibility6.2 mi
Dew point52°
Tue, 2085° / 63°0.03Light rain
85 °Light rain

Arivaca, Tuesday, 20 October

Light rain. High 85°, low 63°.

Pressure29.91 inHg
Wind16.6 mph S
Humidity33%
Visibility6.2 mi
Dew point51°
Wed, 2183° / 66°0.12Rain
83 °Rain

Arivaca, Wednesday, 21 October

Rain. High 83°, low 66°.

Pressure29.91 inHg
Wind18.9 mph S
Humidity36%
Visibility6.2 mi
Dew point53°
Thu, 2276° / 59°0.2Rain
76 °Rain

Arivaca, Thursday, 22 October

Rain. High 76°, low 59°.

Pressure29.88 inHg
Wind23.1 mph S
Humidity55%
Visibility—
Dew point58°
Fri, 2371° / 54°0Clear
71 °Clear

Arivaca, Friday, 23 October

Clear. High 71°, low 54°.

Pressure29.97 inHg
Wind8 mph N
Humidity44%
Visibility—
Dew point43°
Sat, 2479° / 55°0Clear
79 °Clear

Arivaca, Saturday, 24 October

Clear. High 79°, low 55°.

Pressure29.94 inHg
Wind10 mph S
Humidity28%
Visibility—
Dew point36°
Sun, 2578° / 60°0.32Light rain
78 °Light rain

Arivaca, Sunday, 25 October

Light rain. High 78°, low 60°.

Pressure29.85 inHg
Wind18.8 mph E
Humidity48%
Visibility—
Dew point52°
Mon, 2674° / 59°0.06Light rain
74 °Light rain

Arivaca, Monday, 26 October

Light rain. High 74°, low 59°.

Pressure29.83 inHg
Wind11.6 mph SW
Humidity46%
Visibility—
Dew point48°
Tue, 2773° / 58°0Overcast
73 °Overcast

Arivaca, Tuesday, 27 October

Overcast. High 73°, low 58°.

Pressure30.00 inHg
Wind7.3 mph SW
Humidity38%
Visibility—
Dew point41°
Wed, 2874° / 58°0Clear
74 °Clear

Arivaca, Wednesday, 28 October

Clear. High 74°, low 58°.

Pressure29.97 inHg
Wind10.9 mph W
Humidity36%
Visibility—
Dew point41°
Thu, 2970° / 58°0Clear
70 °Clear

Arivaca, Thursday, 29 October

Clear. High 70°, low 58°.

Pressure29.91 inHg
Wind12.5 mph NW
Humidity38%
Visibility—
Dew point41°
Fri, 3072° / 60°0Partly cloudy
72 °Partly cloudy

Arivaca, Friday, 30 October

Partly cloudy. High 72°, low 60°.

Pressure29.91 inHg
Wind10 mph SW
Humidity34%
Visibility—
Dew point40°
Sat, 3174° / 58°0Clear
74 °Clear

Arivaca, Saturday, 31 October

Clear. High 74°, low 58°.

Pressure29.97 inHg
Wind8.1 mph W
Humidity34%
Visibility—
Dew point39°
Sun, 0175° / 58°0Partly cloudy
75 °Partly cloudy

Arivaca, Sunday, 1 November

Partly cloudy. High 75°, low 58°.

Pressure30.09 inHg
Wind7.8 mph N
Humidity31%
Visibility—
Dew point37°
Mon, 0278° / 57°0Clear
78 °Clear

Arivaca, Monday, 2 November

Clear. High 78°, low 57°.

Pressure30.09 inHg
Wind8.6 mph SW
Humidity25%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0375° / 50°0.01Climate normal
75 °Climate normal

Arivaca, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high75°
Average low50°
Average precipitation0.01 in
Chance of precipitation10%
Record high88° (2009)
Record low38° (2004)
Wed, 0474° / 49°0.02Climate normal
74 °Climate normal

Arivaca, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high74°
Average low49°
Average precipitation0.02 in
Chance of precipitation7%
Record high86° (2020)
Record low37° (1974)
Thu, 0575° / 49°0.01Climate normal
75 °Climate normal

Arivaca, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high75°
Average low49°
Average precipitation0.01 in
Chance of precipitation7%
Record high89° (2020)
Record low38° (1994)
Fri, 0675° / 49°0.02Climate normal
75 °Climate normal

Arivaca, Friday, 6 November

Climate normal for this date — 60-year average.

Average high75°
Average low49°
Average precipitation0.02 in
Chance of precipitation5%
Record high86° (2020)
Record low38° (1974)
Sat, 0774° / 50°0.02Climate normal
74 °Climate normal

Arivaca, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high74°
Average low50°
Average precipitation0.02 in
Chance of precipitation10%
Record high85° (2012)
Record low35° (2000)
Sun, 0873° / 49°0.02Climate normal
73 °Climate normal

Arivaca, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high73°
Average low49°
Average precipitation0.02 in
Chance of precipitation8%
Record high83° (1991)
Record low30° (2000)
Mon, 0973° / 48°0.01Climate normal
73 °Climate normal

Arivaca, Monday, 9 November

Climate normal for this date — 60-year average.

Average high73°
Average low48°
Average precipitation0.01 in
Chance of precipitation7%
Record high85° (2025)
Record low34° (2000)
Tue, 1073° / 48°0.01Climate normal
73 °Climate normal

Arivaca, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high73°
Average low48°
Average precipitation0.01 in
Chance of precipitation5%
Record high85° (1973)
Record low34° (1998)
Wed, 1172° / 47°0.03Climate normal
72 °Climate normal

Arivaca, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high72°
Average low47°
Average precipitation0.03 in
Chance of precipitation12%
Record high86° (1973)
Record low37° (2012)
Thu, 1272° / 49°0.05Climate normal
72 °Climate normal

Arivaca, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high72°
Average low49°
Average precipitation0.05 in
Chance of precipitation12%
Record high85° (1967)
Record low35° (1982)
Fri, 1372° / 47°0.02Climate normal
72 °Climate normal

Arivaca, Friday, 13 November

Climate normal for this date — 60-year average.

Average high72°
Average low47°
Average precipitation0.02 in
Chance of precipitation8%
Record high86° (2017)
Record low33° (2000)
Sat, 1471° / 47°0.01Climate normal
71 °Climate normal

Arivaca, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high71°
Average low47°
Average precipitation0.01 in
Chance of precipitation7%
Record high85° (2017)
Record low30° (1961)
Sun, 1570° / 47°0.03Climate normal
70 °Climate normal

Arivaca, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high70°
Average low47°
Average precipitation0.03 in
Chance of precipitation13%
Record high84° (2017)
Record low31° (1961)
Mon, 1670° / 46°0.02Climate normal
70 °Climate normal

Arivaca, Monday, 16 November

Climate normal for this date — 60-year average.

Average high70°
Average low46°
Average precipitation0.02 in
Chance of precipitation7%
Record high85° (2020)
Record low32° (1987)

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 Arivaca, 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 Arivaca, 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.