Arivaca Junction, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Arivaca Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——105°76°—
- MondayJul 6Overcast——103°76°-2°
- TuesdayJul 7Light Drizzle18%—103°77°0°
- WednesdayJul 8Showers12%0.09″101°75°-2°
- ThursdayJul 9Showers31%0.13″103°73°+2°
- FridayJul 10Light Drizzle37%—98°72°-5°
- SaturdayJul 11Light Drizzle33%—97°71°-1°
AQI 38 (Good), driven by PM2.5. AQI down 5 over the last 6 hours (gradual decline). PM2.5 at 12.4 µg/m³, PM10 at 27.0 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 38 now. With UV 5.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 25 around 1 PM.
- Present
- AQI 38
- UV peak
- 5.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 12.4 µg/m³, PM10 at 27.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.46
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:39 PM
- Moonset
- 10:42 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Arivaca Junction at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: February 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Arivaca Junction
- Sun106°76°8%
- Mon103°76°4%
- Tue103°77°18%
- Wed101°75°12%
- Thu103°73°31%
- Fri98°72°37%
- Sat97°71°33%
- Sun98°71°31%
- Mon96°78°35%
- Tue90°73°38%
- Wed96°73°34%
- Thu104°76°39%
- Fri107°83°37%
- Sat109°83°35%
- Sun106°84°41%
- Mon105°78°42%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Arivaca Junction
SPC includes Arivaca Junction in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Arivaca Junction
- 85645