First Mesa, Arizona Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
First Mesa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——91°60°—
- MondayJul 6Overcast——91°66°0°
- TuesdayJul 7Overcast——94°70°+3°
- WednesdayJul 8Overcast——96°75°+2°
- ThursdayJul 9Light Drizzle——97°75°+1°
- FridayJul 10Clear——95°76°-2°
- SaturdayJul 11Overcast——100°75°+5°
AQI 37 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 43. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43. Overcast through the UV peak window (cloud cover ~98%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 11.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 32
PM × Wind × Precip
PM2.5 at 5.5 µg/m³ (AQI 31), ratio 0.43 with 7 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.43
- 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
- 10:38 PM
- Moonset
- 10:38 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
First Mesa at a glance
- Today vs. normal: 78°F — typical for the season
- Last frost: March 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — First Mesa
- Sun91°60°2%
- Mon91°66°4%
- Tue94°70°3%
- Wed96°75°1%
- Thu97°75°1%
- Fri95°76°1%
- Sat100°75°2%
- Sun100°75°7%
- Mon98°77°9%
- Tue96°75°14%
- Wed95°74°12%
- Thu96°75°19%
- Fri99°77°26%
- Sat102°79°25%
- Sun100°79°26%
- Mon102°80°26%
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 — First Mesa
SPC includes First Mesa in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 First Mesa
- 86042