Yuma Forecast

Picture of a crop field up against a mountain in Yuma, AZ

Air Quality Hourly Forecast | Yuma

Click on each day to view forecast.

Friday Forecast:


Ozone

30 AQI
Max 8-hr Avg: 32 ppb

PM10

27 AQI
24-hr Avg: 29 µg/m3

PM2.5

29 AQI
24-hr Avg: 7.0 µg/m3

Saturday Forecast:


Ozone

31 AQI
Max 8-hr Avg: 34 ppb

PM10

28 AQI
24-hr Avg: 30 µg/m3

PM2.5

28 AQI
24-hr Avg: 6.7 µg/m3

Sunday Forecast:


Ozone

32 AQI
Max 8-hr Avg: 35 ppb

PM10

32 AQI
24-hr Avg: 35 µg/m3

PM2.5

30 AQI
24-hr Avg: 7.2 µg/m3

Monday Forecast:


Ozone

35 AQI
Max 8-hr Avg: 38 ppb

PM10

29 AQI
24-hr Avg: 31 µg/m3

PM2.5

27 AQI
24-hr Avg: 6.5 µg/m3

Tuesday Forecast:


Ozone

37 AQI
Max 8-hr Avg: 40 ppb

PM10

30 AQI
24-hr Avg: 32 µg/m3

PM2.5

29 AQI
24-hr Avg: 7.0 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
7/23/2021
Saturday
7/24/2021
Sunday
7/25/2021
Monday
7/26/2021
Tuesday
7/27/2021
O3
30
31
32
35
37
PM10
27
28
32
29
30
PM2.5
29
28
30
27
29
Pollutant
FRI
SAT
SUN
MON
TUE
O3
30
31
32
35
37
PM10
27
28
32
29
30
PM2.5
29
28
30
27
29
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

On its own, the North American Monsoon is already complex, with multiple factors contributing to thunderstorm development and movement. But add a low pressure wave to the mix and you increase the complexity. Over the past 24 hours, Arizona has been caught in between the influences of a typical monsoonal high pressure system (centered over the Four Corners) and an approaching low pressure wave from the east. The interaction between these two atmospheric features has resulted in widespread rain in much of central Arizona--hazardously heavy in some areas.

Satellite this morning (Friday) reveals a large mass of clouds enshrouding much of Arizona. These clouds are, in part, leftover from overnight thunderstorm activity, and are also from current rain/storm activity over Maricopa and Gila Counties (as of 9 AM). The main story for this forecast will be the continued chances for thunderstorms and rain in central Arizona today through Sunday as the aforementioned low pressure wave slowly makes its way westward through the state. Storm coverage then looks to decrease by Monday.

So what does this all mean for Yuma's weather and air quality? Clouds and winds from storm activity in central Arizona will definitely be possible over the weekend in the Yuma area. Clouds will help to reduce local ozone formation. But, we can't rule out brief blowing dust from any winds that do reach Yuma. Hourly forecast PM10 levels have been slightly increased for this evening and Sunday morning for chances for such winds.

In regards to rain, rain is still expected to be only minimal for the Yuma area. Sprinkles/light rain will be possible over the weekend.

Overall, ozone, PM10, and PM2.5 (smoke) are forecast in the Good Air Quality Index (AQI) category through this period. But still stay weather and dust-aware!

- M. Graves
ADEQ Meteorologist


What Flag Should I Fly?

Friday: Green
Saturday: Green

What is the Flag Program and how can my school/organization join? | Learn More >