San Luis, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
San Luis weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Mostly Clear——110°82°—
- MondayJul 6Clear——107°80°-3°
- TuesdayJul 7Clear——110°81°+3°
- WednesdayJul 8Clear——108°82°-2°
- ThursdayJul 9Clear——107°84°-1°
- FridayJul 10Overcast——106°84°-1°
- SaturdayJul 11Overcast——104°83°-2°
AQI 52 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 12.7 µg/m³ (AQI 58), ratio 0.61 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
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 9.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 46 around 1 PM.
- Present
- AQI 38
- UV peak
- 9.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 12.7 µg/m³ (AQI 58), ratio 0.61 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.61
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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
- 10:54 PM
- Moonset
- 10:58 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
San Luis at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: March 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 85336, 85349
16-Day Forecast — San Luis
- Sun110°82°1%
- Mon107°80°1%
- Tue110°81°0%
- Wed108°82°0%
- Thu107°84°0%
- Fri106°84°0%
- Sat104°83°2%
- Sun106°84°5%
- Mon109°85°11%
- Tue102°86°8%
- Wed103°84°7%
- Thu109°87°10%
- Fri120°90°16%
- Sat114°91°10%
- Sun116°90°6%
- Mon118°88°3%
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.
ZIP codes in San Luis
- 85336
- 85350
- 85349