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

50 AQI
Max 8-hr Avg: 54 ppb

PM10

44 AQI
24-hr Avg: 47 µg/m3

PM2.5

59 AQI
24-hr Avg: 16.0 µg/m3

Saturday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

45 AQI
24-hr Avg: 49 µg/m3

PM2.5

56 AQI
24-hr Avg: 14.3 µg/m3

Sunday Forecast:


Ozone

50 AQI
Max 8-hr Avg: 54 ppb

PM10

49 AQI
24-hr Avg: 53 µg/m3

PM2.5

44 AQI
24-hr Avg: 10.5 µg/m3

Monday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

46 AQI
24-hr Avg: 50 µg/m3

PM2.5

46 AQI
24-hr Avg: 11.0 µg/m3

Tuesday Forecast:


Ozone

54 AQI
Max 8-hr Avg: 56 ppb

PM10

45 AQI
24-hr Avg: 49 µg/m3

PM2.5

42 AQI
24-hr Avg: 10.0 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
5/14/2021
Saturday
5/15/2021
Sunday
5/16/2021
Monday
5/17/2021
Tuesday
5/18/2021
O3
50
51
50
51
54
PM10
44
45
49
46
45
PM2.5
59
56
44
46
42
Pollutant
FRI
SAT
SUN
MON
TUE
O3
50
51
50
51
54
PM10
44
45
49
46
45
PM2.5
59
56
44
46
42
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

A low-pressure system is looking to move over northern California later today that will eventually dip its way down into Arizona. Once it does, winds will shift to be out of the west, and temperatures will decrease ever so slightly. Breeziest conditions will be Saturday afternoon/overnight followed by Sunday afternoon/overnight. The jet stream from the low-pressure system will be going right over the Yuma area, causing an increase in wind speeds.

Looking toward next week: the same low-pressure system moving in today (Friday) will be over Arizona continuing its way eastward. By Tuesday afternoon, this system should be over in New Mexico. Following this system, a weak ridge is going to try and push its way up from the coast of the California Baja, but this could get overruled by another trough lowering from the Pacific Northwest. We'll have more updates on what to expect on Monday.

As for air quality, overnight stagnation has assisted particulates (PM10 and PM2.5) in being elevated this morning. As calm conditions persist throughout the day, PM10 (dust) is forecast to be in the upper Good Air Quality Index (AQI) range, and PM2.5 (smoke) is expected to reach Moderate AQI. Ozone is forecast to hit Moderate AQI Saturday, Monday and Tuesday and then drop into the Good range today (Friday), and Sunday due to wind speed and direction helping clear things out.

Have a great weekend!

- P. Swenson
ADEQ Meteorologist


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Saturday: Yellow
Sunday: Green

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