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

37 AQI
Concentration: 40 µg/m3

PM2.5

24 AQI
Concentration: 5.7 µg/m3

Saturday Forecast:


Ozone

38 AQI
Concentration: 41 ppb

PM10

29 AQI
Concentration: 31 µg/m3

PM2.5

21 AQI
Concentration: 5 µg/m3

Sunday Forecast:


Ozone

41 AQI
Concentration: 44 ppb

PM10

25 AQI
Concentration: 27 µg/m3

PM2.5

22 AQI
Concentration: 5.2 µg/m3

Monday Forecast:


Ozone

42 AQI
Concentration: 45 ppb

PM10

31 AQI
Concentration: 34 µg/m3

PM2.5

26 AQI
Concentration: 6.2 µg/m3

Tuesday Forecast:


Ozone

44 AQI
Concentration: 47 ppb

PM10

37 AQI
Concentration: 40 µg/m3

PM2.5

30 AQI
Concentration: 7.2 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
10/12/2018
Saturday
10/13/2018
Sunday
10/14/2018
Monday
10/15/2018
Tuesday
10/16/2018
O3
41
38
41
42
44
CO
7
7
8
8
9
PM10
37
29
25
31
37
PM2.5
24
21
22
26
30
Pollutant
FRI
SAT
SUN
MON
TUE
O3
41
38
41
42
44
CO
7
7
8
8
9
PM10
37
29
25
31
37
PM2.5
24
21
22
26
30
O3 = Ozone, CO = Carbon Monoxide, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

What an incredible month weather-wise for Phoenix! The average high temperature so far this month has been 82.5 degrees, which is about 10 degrees below average. The continued good news, forecast high temperatures are in the 70's Saturday through at least the middle of next week. Certainly, take some time and enjoy this great weather and air quality.

Tropical Storm Sergio, currently over Baja, is spreading a copious amount of moisture into mainly southern Arizona. In fact, the weather balloon sounding in Tucson this morning measured a record amount of precipitable water in the atmosphere for the day. With the majority of the moisture and lift in the atmosphere focused across southern Arizona, it is of no surprise that is where most of the rain is currently falling. With that said, some showers are moving through the Phoenix valley this morning and we can expect rain chances through the day. Rain totals here in the Valley are expected to stay below 0.10".

As Sergio quickly weakens today and the remnants shift east, our focus turns to an area of low pressure that has developed off the coast of southern California. As this system moves through Arizona tomorrow, enough leftover moisture from Sergio will be available across the state to result in the development of another round of widespread showers and thunderstorms during the day. With these storms, currently forecasting about 0.25-0.50 inches, with higher amounts possible in localized areas with any thunderstorms that develop.

Slight rain chances will continue into Sunday and potentially Monday as another disturbance drops into the state but the atmosphere will really begin to dry out so not anticipating much in the way of coverage.

With rain in the forecast and cloudy skies, air quality will remain in the Good AQI category through the forecast period.

Have a great weekend!

- M. Pace
ADEQ Meteorologist


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