Phoenix Forecast

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Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Friday Forecast:


Ozone

48 AQI
Max 8-hr Avg: 52 ppb

PM10

71 AQI
24-hr Avg: 96 µg/m3

PM2.5

58 AQI
24-hr Avg: 15.4 µg/m3

Saturday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

59 AQI
24-hr Avg: 72 µg/m3

PM2.5

54 AQI
24-hr Avg: 13.4 µg/m3

Sunday Forecast:


Ozone

46 AQI
Max 8-hr Avg: 50 ppb

PM10

55 AQI
24-hr Avg: 63 µg/m3

PM2.5

53 AQI
24-hr Avg: 12.9 µg/m3

Monday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 47 ppb

PM10

51 AQI
24-hr Avg: 55 µg/m3

PM2.5

49 AQI
24-hr Avg: 11.8 µg/m3

Tuesday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

56 AQI
24-hr Avg: 65 µg/m3

PM2.5

50 AQI
24-hr Avg: 12.0 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
10/30/2020
Saturday
10/31/2020
Sunday
11/1/2020
Monday
11/2/2020
Tuesday
11/3/2020
O3
48
49
46
44
49
PM10
71
59
55
51
56
PM2.5
58
54
53
49
50
Pollutant
FRI
SAT
SUN
MON
TUE
O3
48
49
46
44
49
PM10
71
59
55
51
56
PM2.5
58
54
53
49
50
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Above-average high temperatures have returned to the Valley of the Sun, with a high temperature on Thursday of 85 degrees, which is 2 degrees above average for this time of year.

From a big picture vantage point, high pressure will build back into the region today through the first part of next week, which will allow afternoon high temperatures to remain in the upper 80s to low 90s, well above average for this time of year. The one caveat continues to be a weak disturbance, which is now located about 500 miles off the coast of Northern Baja. This system will move eastward and then northward into Southern California Sunday into Monday before weakening further and lifting toward the northeast Tuesday. This system and associated moisture will increase clouds Saturday through Tuesday, along with breezy easterly winds Sunday through Tuesday morning. There will also be a very slight chance of rain Monday into Tuesday, but any rain is currently forecast to be very light and rather isolated. Nevertheless, at least there is a chance, no matter how small that chance might be!

As for air quality, ozone is forecast to be in the Good AQI category. PM-10 is forecast to remain in the Moderate AQI category through the forecast period, with concentrations lowering slightly Monday into Tuesday with breezy easterly winds helping to weaken the morning inversion.

Have a great weekend, and Happy Halloween!

- M. Pace
ADEQ Meteorologist


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