Phoenix Forecast

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Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Friday Forecast:


Ozone

41 AQI
Concentration: 44 ppb

PM10

50 AQI
Concentration: 54 µg/m3

PM2.5

24 AQI
Concentration: 5.8 µg/m3

Saturday Forecast:


Ozone

36 AQI
Concentration: 39 ppb

PM10

36 AQI
Concentration: 39 µg/m3

PM2.5

20 AQI
Concentration: 4.8 µg/m3

Sunday Forecast:


Ozone

35 AQI
Concentration: 38 ppb

PM10

30 AQI
Concentration: 32 µg/m3

PM2.5

18 AQI
Concentration: 4.4 µg/m3

Monday Forecast:


Ozone

40 AQI
Concentration: 43 ppb

PM10

36 AQI
Concentration: 39 µg/m3

PM2.5

21 AQI
Concentration: 5 µg/m3

Tuesday Forecast:


Ozone

42 AQI
Concentration: 45 ppb

PM10

42 AQI
Concentration: 45 µg/m3

PM2.5

25 AQI
Concentration: 5.9 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
10/19/2018
Saturday
10/20/2018
Sunday
10/21/2018
Monday
10/22/2018
Tuesday
10/23/2018
O3
41
36
35
40
42
CO
7
5
6
5
7
PM10
50
36
30
36
42
PM2.5
24
20
18
21
25
Pollutant
FRI
SAT
SUN
MON
TUE
O3
41
36
35
40
42
CO
7
5
6
5
7
PM10
50
36
30
36
42
PM2.5
24
20
18
21
25
O3 = Ozone, CO = Carbon Monoxide, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Have you been enjoying the well below average weather lately? Unfortunately, after 18 days of below average high temperatures in Phoenix, a warming trend will bring that to an end later this afternoon with high temperatures forecast to be right at the average of 87 degrees. Tomorrow (Saturday), expecting even warmer conditions with high temperatures rising into the low 90's. The good news, air quality is forecast to remain in the Good AQI category through the weekend.

Water vapor satellite tells the story this morning for what is happening in the atmosphere. An area of low is developing off the coast of Southern California as a large area of high pressure moves over the Pacific Northwest. As high pressure slides eastward, it will allow the low to begin moving northeast this weekend into the first part of next week. This pattern will also result in an increase in moisture from the south which will help to bring a chance of rain to the Valley of the Sun late Saturday through the day on Sunday. Not expecting widespread coverage with only isolated storms currently in the forecast; however, storms that do form will be capable of producing heavy rain and strong gusty winds.

The other thing to note for this weekend is breezy easterly winds likely Saturday through Sunday. Currently forecasting easterly winds of 15-25mph both days with some higher gusts possible. The strongest winds are predicted to be Saturday afternoon through Sunday morning. While this would typically be a dust concern given the longevity of the wind event, with all the recent rain, not expecting much dust to be produced. With that said, use caution traveling as localized areas of blowing dust will be possible.

By next week, expecting winds to calm and skies to clear with temperatures sitting in the mid-80's which is right around average for this time of year.

Have a great weekend!

- M. Pace
ADEQ Meteorologist


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