Rillito, Arizona Weather
Heat hardens the dust. Day 77 of spring. Read this microseason across nine climate regions →
Rillito weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——102°70°—
- ThursdayJun 4Overcast——102°74°0°
- FridayJun 5Overcast——102°73°0°
- SaturdayJun 6Overcast——101°73°-1°
- SundayJun 7Overcast——101°74°0°
- MondayJun 8Overcast——103°73°+2°
- TuesdayJun 9Overcast——105°76°+2°
Ozone at AQI 63 — peak already passed at 1 PM under clear skies. AQI up 19 in the last 6 hours — air quality is degrading. Levels should ease through evening.
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 63 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 63
- UV peak
- 1.2 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 63
PM × Wind × Precip
PM10 at 15.0 µg/m³ (AQI 14) with a 0.31 fine-to-coarse ratio under 14 mph wind — coarse road or agricultural dust being kicked up.
- PM2.5/PM10
- 0.31
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- blown dust
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
- 5:34 AM
- Moonset
- 3:51 PM
- In sign
- ♑︎ Capricorn
Heat hardens the dust
Rillito at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: March 1 (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.
SPC Convective Outlook
Storm Prediction Center — Rillito
SPC has placed Rillito in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- 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.