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Current weather in Arivaca Junction is few clouds.

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Weather data for Arivaca Junction is updated regularly with the latest available observations and forecasts.

Now · 5:00 PM

Arivaca Junction Weather & Hourly Forecast

United States · Arizona · 85645

90°F

Mostly sunny

Feels like: 91°F

💧 Humidity 40% 🌡 Pressure 29.85 inHg 💨 Wind 12 mph 👁 Visibility 6.2 mi ☁ Clouds 23% ☀️ UV index 2.3 · Low 🌅 Sunrise 6:00 AM 🌇 Sunset 6:48 PM

Hourly Forecast for Arivaca Junction

Today

6:00 PM

Mostly sunny

90° 💧 None 💨 12 mph H 40%29.85 inHg

9:00 PM

Mostly cloudy night

79° 💧 None 💨 4 mph H 49%29.91 inHg

Tomorrow

12:00 AM

Overcast night

74° 💧 None 💨 5 mph H 53%29.94 inHg

3:00 AM

Light rain

74° 💧 0.01 in 💨 5 mph H 60%29.94 inHg

6:00 AM

Clear night

69° 💧 0.01 in 💨 3 mph H 64%29.97 inHg

9:00 AM

Sunny

78° 💧 None 💨 2 mph H 50%29.97 inHg

12:00 PM

Sunny

76° 💧 None 💨 4 mph H 37%29.94 inHg

3:00 PM

Mostly cloudy

78° 💧 None 💨 9 mph H 38%29.88 inHg

6:00 PM

Mostly sunny

79° 💧 None 💨 10 mph H 43%29.85 inHg

9:00 PM

Clear night

75° 💧 None 💨 4 mph H 52%29.91 inHg

Thursday

12:00 AM

Mostly cloudy night

74° 💧 0.01 in 💨 3 mph H 59%29.91 inHg

3:00 AM

Light rain

73° 💧 0.05 in 💨 4 mph H 72%29.91 inHg

6:00 AM

Clear night

73° 💧 0.01 in 💨 4 mph H 74%29.91 inHg

9:00 AM

Light rain

82° 💧 0.01 in 💨 4 mph H 55%29.91 inHg

12:00 PM

Overcast

89° 💧 0.02 in 💨 7 mph H 40%29.85 inHg

3:00 PM

Overcast

87° 💧 None 💨 8 mph H 46%29.83 inHg

Today

6:00 PM

Mostly sunny

90° 💧 None 💨 12 mph H 40%29.85 inHg

7:00 PM

Partly cloudy night

87° 💧 None 💨 11 mph H 45%29.88 inHg

8:00 PM

Partly cloudy night

84° 💧 None 💨 5 mph H 48%29.91 inHg

9:00 PM

Mostly cloudy night

79° 💧 None 💨 4 mph H 49%29.91 inHg

10:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 54%29.94 inHg

11:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 54%29.94 inHg

Tomorrow

12:00 AM

Overcast night

74° 💧 None 💨 5 mph H 53%29.94 inHg

1:00 AM

Overcast night

74° 💧 None 💨 5 mph H 55%29.94 inHg

2:00 AM

Mostly cloudy night

73° 💧 None 💨 6 mph H 58%29.94 inHg

3:00 AM

Light rain

74° 💧 0.00 in 💨 5 mph H 60%29.94 inHg

4:00 AM

Light rain

72° 💧 0.00 in 💨 4 mph H 61%29.94 inHg

5:00 AM

Partly cloudy night

71° 💧 None 💨 4 mph H 63%29.94 inHg

6:00 AM

Clear night

69° 💧 None 💨 3 mph H 64%29.97 inHg

7:00 AM

Light rain

71° 💧 0.01 in 💨 3 mph H 60%29.97 inHg

8:00 AM

Sunny

77° 💧 None 💨 3 mph H 54%29.97 inHg

9:00 AM

Sunny

78° 💧 None 💨 2 mph H 50%29.97 inHg

10:00 AM

Sunny

81° 💧 None 💨 2 mph H 44%29.97 inHg

11:00 AM

Sunny

76° 💧 None 💨 3 mph H 40%29.94 inHg

12:00 PM

Sunny

76° 💧 None 💨 4 mph H 37%29.94 inHg

1:00 PM

Mostly sunny

76° 💧 None 💨 6 mph H 35%29.91 inHg

2:00 PM

Partly cloudy

78° 💧 None 💨 9 mph H 35%29.88 inHg

3:00 PM

Mostly cloudy

78° 💧 None 💨 9 mph H 38%29.88 inHg

4:00 PM

Mostly cloudy

78° 💧 None 💨 10 mph H 39%29.85 inHg

5:00 PM

Mostly cloudy

77° 💧 None 💨 11 mph H 40%29.85 inHg

6:00 PM

Mostly sunny

79° 💧 None 💨 10 mph H 43%29.85 inHg

7:00 PM

Mostly clear night

77° 💧 None 💨 6 mph H 49%29.88 inHg

8:00 PM

Clear night

76° 💧 None 💨 3 mph H 51%29.88 inHg

9:00 PM

Clear night

75° 💧 None 💨 4 mph H 52%29.91 inHg

10:00 PM

Clear night

74° 💧 None 💨 4 mph H 54%29.91 inHg

11:00 PM

Clear night

73° 💧 None 💨 4 mph H 56%29.91 inHg

Thursday

12:00 AM

Mostly cloudy night

74° 💧 None 💨 3 mph H 59%29.91 inHg

1:00 AM

Overcast night

74° 💧 None 💨 1 mph H 62%29.91 inHg

2:00 AM

Light rain

72° 💧 0.01 in 💨 2 mph H 65%29.91 inHg

3:00 AM

Light rain

73° 💧 0.03 in 💨 4 mph H 72%29.91 inHg

4:00 AM

Light rain

72° 💧 0.02 in 💨 4 mph H 74%29.91 inHg

5:00 AM

Partly cloudy night

71° 💧 None 💨 4 mph H 74%29.88 inHg

6:00 AM

Clear night

73° 💧 None 💨 4 mph H 74%29.91 inHg

7:00 AM

Light rain

75° 💧 0.01 in 💨 4 mph H 69%29.94 inHg

8:00 AM

Light rain

78° 💧 0.01 in 💨 4 mph H 63%29.94 inHg

9:00 AM

Light rain

82° 💧 0.01 in 💨 4 mph H 55%29.91 inHg

10:00 AM

Partly cloudy

84° 💧 None 💨 3 mph H 49%29.91 inHg

11:00 AM

Partly cloudy

87° 💧 None 💨 5 mph H 44%29.91 inHg

12:00 PM

Overcast

89° 💧 None 💨 7 mph H 40%29.85 inHg

1:00 PM

Light rain

89° 💧 0.01 in 💨 9 mph H 40%29.83 inHg

2:00 PM

Light rain

87° 💧 0.01 in 💨 9 mph H 44%29.83 inHg

3:00 PM

Overcast

87° 💧 None 💨 8 mph H 46%29.83 inHg

4:00 PM

Overcast

88° 💧 None 💨 10 mph H 43%29.80 inHg

5:00 PM

Overcast

85° 💧 None 💨 15 mph H 50%29.80 inHg

6:00 PM

Light rain

83° 💧 0.03 in 💨 11 mph H 55%29.80 inHg

7:00 PM

Light rain

81° 💧 0.03 in 💨 9 mph H 59%29.83 inHg

8:00 PM

Moderate rain

79° 💧 0.06 in 💨 8 mph H 64%29.83 inHg

9:00 PM

Moderate rain

78° 💧 0.04 in 💨 8 mph H 69%29.88 inHg

10:00 PM

Overcast night

76° 💧 None 💨 8 mph H 73%29.88 inHg

11:00 PM

Light rain

76° 💧 0.01 in 💨 5 mph H 72%29.88 inHg

Friday

12:00 AM

Moderate rain

72° 💧 0.11 in 💨 5 mph H 81%29.88 inHg

1:00 AM

Moderate rain

71° 💧 0.13 in 💨 6 mph H 87%29.88 inHg

2:00 AM

Moderate rain

71° 💧 0.10 in 💨 6 mph H 87%29.88 inHg

3:00 AM

Moderate rain

72° 💧 0.11 in 💨 10 mph H 82%29.88 inHg

4:00 AM

Moderate rain

73° 💧 0.07 in 💨 11 mph H 79%29.85 inHg

5:00 AM

Light rain

72° 💧 0.00 in 💨 9 mph H 81%29.88 inHg

6:00 AM

Overcast night

72° 💧 None 💨 9 mph H 82%29.88 inHg

7:00 AM

Overcast

73° 💧 None 💨 8 mph H 80%29.91 inHg

8:00 AM

Mostly cloudy

76° 💧 None 💨 12 mph H 68%29.91 inHg

9:00 AM

Mostly cloudy

79° 💧 None 💨 13 mph H 60%29.91 inHg

10:00 AM

Partly cloudy

81° 💧 None 💨 13 mph H 54%29.91 inHg

11:00 AM

Partly cloudy

84° 💧 None 💨 12 mph H 49%29.91 inHg

12:00 PM

Light rain

86° 💧 0.00 in 💨 11 mph H 45%29.88 inHg

1:00 PM

Sunny

87° 💧 None 💨 12 mph H 42%29.85 inHg

2:00 PM

Sunny

88° 💧 None 💨 13 mph H 41%29.85 inHg

3:00 PM

Light rain

85° 💧 0.00 in 💨 12 mph H 44%29.83 inHg

4:00 PM

Partly cloudy

84° 💧 None 💨 10 mph H 47%29.83 inHg

5:00 PM

Partly cloudy

84° 💧 None 💨 11 mph H 48%29.83 inHg

6:00 PM

Mostly cloudy

82° 💧 None 💨 10 mph H 53%29.85 inHg

7:00 PM

Mostly cloudy night

81° 💧 None 💨 7 mph H 56%29.85 inHg

8:00 PM

Mostly cloudy night

79° 💧 None 💨 6 mph H 59%29.88 inHg

9:00 PM

Mostly cloudy night

78° 💧 None 💨 5 mph H 62%29.91 inHg

10:00 PM

Overcast night

77° 💧 None 💨 5 mph H 65%29.91 inHg

11:00 PM

Overcast night

76° 💧 None 💨 5 mph H 66%29.91 inHg

Saturday

12:00 AM

Overcast night

76° 💧 None 💨 5 mph H 67%29.91 inHg

1:00 AM

Mostly cloudy night

75° 💧 None 💨 6 mph H 69%29.91 inHg

2:00 AM

Light rain

74° 💧 0.01 in 💨 4 mph H 72%29.88 inHg

3:00 AM

Partly cloudy night

73° 💧 None 💨 5 mph H 73%29.88 inHg

4:00 AM

Light rain

73° 💧 0.00 in 💨 4 mph H 75%29.91 inHg

5:00 AM

Mostly clear night

73° 💧 None 💨 4 mph H 74%29.91 inHg

6:00 AM

Overcast night

73° 💧 None 💨 5 mph H 74%29.91 inHg

7:00 AM

Light rain

74° 💧 0.01 in 💨 4 mph H 71%29.94 inHg

8:00 AM

Light rain

77° 💧 0.01 in 💨 5 mph H 65%29.94 inHg

9:00 AM

Moderate rain

79° 💧 0.05 in 💨 5 mph H 61%29.94 inHg

10:00 AM

Moderate rain

82° 💧 0.04 in 💨 5 mph H 54%29.94 inHg

11:00 AM

Light rain

84° 💧 0.01 in 💨 6 mph H 50%29.94 inHg

12:00 PM

Light rain

85° 💧 0.01 in 💨 7 mph H 48%29.91 inHg

1:00 PM

Light rain

87° 💧 0.01 in 💨 8 mph H 46%29.88 inHg

2:00 PM

Overcast

87° 💧 None 💨 9 mph H 44%29.88 inHg

3:00 PM

Overcast

87° 💧 None 💨 10 mph H 45%29.85 inHg

4:00 PM

Light rain

85° 💧 0.00 in 💨 10 mph H 49%29.85 inHg

5:00 PM

Light rain

82° 💧 0.03 in 💨 11 mph H 56%29.88 inHg

In Arivaca Junction and, more broadly, across the state of Arizona: As the afternoon winds down, clear skies will continue to dominate the evening, with temperatures remaining warm, ranging from the low 80s to the low 90s. Light southwest winds at around 8 mph will persist, with occasional gusts. No precipitation is expected, so dry conditions will prevail throughout the evening. It should stay comfortably warm into the night, making for a quiet and pleasant end to the day.

15-Day Weather Outlook for Arivaca Junction

TomorrowTomorrow

Light rain 81°/69° 💧 0.02 in 💨 11 mph

Thursday, Sep 3Thu Sep 3

Moderate rain 89°/71° 💧 0.28 in 💨 15 mph

Friday, Sep 4Fri Sep 4

Moderate rain 88°/71° 💧 0.53 in 💨 13 mph

Saturday, Sep 5Sat Sep 5

Light rain 87°/73° 💧 0.33 in 💨 11 mph

Sunday, Sep 6Sun Sep 6

Overcast 89°/73° 💧 None 💨 11 mph

Monday, Sep 7Mon Sep 7

Moderate rain 95°/75° 💧 0.21 in 💨 12 mph

Tuesday, Sep 8Tue Sep 8

Overcast 93°/74° 💧 None 💨 14 mph

Wednesday, Sep 9Wed Sep 9

Moderate rain 92°/71° 💧 0.42 in 💨 14 mph

Thursday, Sep 10Thu Sep 10

Moderate rain 87°/70° 💧 0.55 in 💨 9 mph

Friday, Sep 11Fri Sep 11

Sunny 91°/74° 💧 None 💨 15 mph

Saturday, Sep 12Sat Sep 12

Light rain 82°/69° 💧 0.23 in 💨 11 mph

Sunday, Sep 13Sun Sep 13

Light rain 85°/69° 💧 0.02 in 💨 6 mph

Monday, Sep 14Mon Sep 14

Light rain 93°/73° 💧 0.01 in 💨 10 mph

Tuesday, Sep 15Tue Sep 15

Sunny 91°/71° 💧 None 💨 16 mph

Wednesday, Sep 16Wed Sep 16

Sunny 93°/72° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Arivaca Junction

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Arivaca Junction

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 PM

PM2.5 Fine particles Good 5,0µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 13,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 57,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,4µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Arivaca Junction

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 11,0Extreme 😊Good

Tomorrow UV 11,2Extreme 🙂Fair

Thursday UV 10,7Very high 🙂Fair

Friday UV 10,9Very high 😊Good

Saturday UV 10,7Very high 😊Good

Sunday UV 8,0Very high —Unavailable

Monday UV 8,0Very high —Unavailable

Hourly UV index today

6:00 PMUV 0,2 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Extreme UV risk

Avoid direct sun around midday. Use SPF 50+ sunscreen, a hat, protective clothing and sunglasses.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Arivaca Junction

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.76 Population: 642

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Forecast data for Arivaca Junction were last refreshed today at 5:00 PM. The current forecast period extends through 03/09/2026 at 3:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.