Arivaca, Arizona Weather
Heat hardens the dust. Day 77 of spring. Read this microseason across nine climate regions →
Arivaca weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast13%—95°69°—
- FridayJun 5Clear——94°64°-1°
- SaturdayJun 6Overcast——92°67°-2°
- SundayJun 7Overcast——93°68°+1°
- MondayJun 8Overcast——94°66°+1°
- TuesdayJun 9Overcast——98°68°+4°
- WednesdayJun 10Overcast——96°71°-2°
Ozone at AQI 33 now. AQI down 6 over the last 6 hours (steady decline since this morning). With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 AM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 10 by mid-afternoon.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 5.3 µg/m³, PM10 at 17.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.31
- Wind
- light
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:32 AM
- Moonset
- 3:54 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Arivaca at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: February 24 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 4, 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.