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.

Wednesday Forecast:


Ozone

46 AQI
Max 8-hr Avg: 50 ppb

PM10

41 AQI
24-hr Avg: 44 µg/m3

PM2.5

35 AQI
24-hr Avg: 8.3 µg/m3

Thursday Forecast:


Ozone

47 AQI
Max 8-hr Avg: 51 ppb

PM10

37 AQI
24-hr Avg: 40 µg/m3

PM2.5

33 AQI
24-hr Avg: 7.9 µg/m3

Friday Forecast:


Ozone

48 AQI
Max 8-hr Avg: 52 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

PM2.5

34 AQI
24-hr Avg: 8.1 µg/m3

Saturday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 47 ppb

PM10

31 AQI
24-hr Avg: 34 µg/m3

PM2.5

26 AQI
24-hr Avg: 6.2 µg/m3

Sunday Forecast:


Ozone

43 AQI
Max 8-hr Avg: 46 ppb

PM10

28 AQI
24-hr Avg: 30 µg/m3

PM2.5

22 AQI
24-hr Avg: 5.2 µg/m3

Air Quality By Pollutant:

Pollutant
Wednesday
10/20/2021
Thursday
10/21/2021
Friday
10/22/2021
Saturday
10/23/2021
Sunday
10/24/2021
O3
46
47
48
44
43
PM10
41
37
36
31
28
PM2.5
35
33
34
26
22
Pollutant
WED
THU
FRI
SAT
SUN
O3
46
47
48
44
43
PM10
41
37
36
31
28
PM2.5
35
33
34
26
22
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Temperatures have been rather pleasant in Yuma this week. Yesterday, reached a high of 80 degrees with light winds primarily out of the north-northwest. High-pressure that is trying to strengthen over the southwest is being delayed due to the low-pressure system we saw earlier this week being centered over the Nebraska/Wyoming border. As this disturbance continues toward the Great Lakes region, the ridge will be able to build up and continue to cause temperature increases and light northerly winds.

Over the weekend, we'll see things slightly cool off with another disturbance to our north, weakening the ridge over Arizona. The main influence Yuma will see from the passing trough will be the dip in temperatures and winds shift to a westerly flow. It appears a stronger disturbance will be sweeping through the region toward the beginning of next week, but we'll have more on that in upcoming discussions.

As for air quality, ozone values have been trending higher with calmer conditions and current high pressure over the region. We are still forecasting Good Air Quality Index (AQI) levels for this forecast period. As for particulates, lighter winds are assisting with keeping PM10 (dust) and PM2.5 (smoke) within the Good AQI range as well. Stagnate overnight conditions along with local activity tend to cause elevated levels in the morning and evening hours. Overall, both particulates are still expected to remain in the Good AQI category this period.

Have a great day!

- P. Swenson
ADEQ Meteorologist


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Thursday: Green
Friday: Green

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