AQD | Phoenix Forecast
Updated On: 4/18/2024 - 8:53 AM
Click on each day to view forecast.
Thursday Forecast:
Ozone
77 AQI
Max 8-hr Avg: 63 ppb
Max 8-hr Avg: 63 ppb
PM10
52 AQI
24-hr Avg: 57 µg/m3
24-hr Avg: 57 µg/m3
PM2.5
43 AQI
24-hr Avg: 10.4 µg/m3
24-hr Avg: 10.4 µg/m3
Friday Forecast:
Ozone
80 AQI
Max 8-hr Avg: 64 ppb
Max 8-hr Avg: 64 ppb
PM10
49 AQI
24-hr Avg: 53 µg/m3
24-hr Avg: 53 µg/m3
PM2.5
40 AQI
24-hr Avg: 9.5 µg/m3
24-hr Avg: 9.5 µg/m3
Saturday Forecast:
Ozone
84 AQI
Max 8-hr Avg: 65 ppb
Max 8-hr Avg: 65 ppb
PM10
35 AQI
24-hr Avg: 38 µg/m3
24-hr Avg: 38 µg/m3
PM2.5
28 AQI
24-hr Avg: 6.7 µg/m3
24-hr Avg: 6.7 µg/m3
Sunday Forecast:
Alert: Ozone High Pollution Watch in effect for Sunday
Ozone
101 AQI
Max 8-hr Avg: 71 ppb
Max 8-hr Avg: 71 ppb
PM10
34 AQI
24-hr Avg: 37 µg/m3
24-hr Avg: 37 µg/m3
PM2.5
27 AQI
24-hr Avg: 6.5 µg/m3
24-hr Avg: 6.5 µg/m3
Monday Forecast:
Ozone
93 AQI
Max 8-hr Avg: 68 ppb
Max 8-hr Avg: 68 ppb
PM10
48 AQI
24-hr Avg: 52 µg/m3
24-hr Avg: 52 µg/m3
PM2.5
39 AQI
24-hr Avg: 9.4 µg/m3
24-hr Avg: 9.4 µg/m3
Air Quality By Pollutant:
Pollutant
Thursday
4/18/2024
4/18/2024
Friday
4/19/2024
4/19/2024
Saturday
4/20/2024
4/20/2024
Sunday
4/21/2024
4/21/2024
Monday
4/22/2024
4/22/2024
O3
77
80
84
101
93
PM10
52
49
35
34
48
PM2.5
43
40
28
27
39
Pollutant
THU
FRI
SAT
SUN
MON
O3
77
80
84
101
93
PM10
52
49
35
34
48
PM2.5
43
40
28
27
39
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns
Forecast Discussion:
A weak disturbance is forecast to make its way across the Pacific Southwest over the next couple of days, providing southwesterly breezes and cloud cover to the valley.
The increased ventilation will help to limit ozone production at the surface over the next few days. Moderate ozone is forecast for the Phoenix area through Saturday. By Sunday, light winds and ample sunlight will envelop the southern half of the state, with temperatures reaching into the high 90s. Due to the stagnant conditions expected, we are issuing a High Pollution Watch for Phoenix on Sunday.
Active weather will return next week, helping to lower ozone back into the Moderate AQI. We will continue to monitor conditions to determine if upgrading the High Pollution Watch to a High Pollution Advisory is necessary for Sunday.
Check back in with us tomorrow for an update on our current HPW for Phoenix.
- B. Droppleman
ADEQ Meteorologist
The increased ventilation will help to limit ozone production at the surface over the next few days. Moderate ozone is forecast for the Phoenix area through Saturday. By Sunday, light winds and ample sunlight will envelop the southern half of the state, with temperatures reaching into the high 90s. Due to the stagnant conditions expected, we are issuing a High Pollution Watch for Phoenix on Sunday.
Active weather will return next week, helping to lower ozone back into the Moderate AQI. We will continue to monitor conditions to determine if upgrading the High Pollution Watch to a High Pollution Advisory is necessary for Sunday.
Check back in with us tomorrow for an update on our current HPW for Phoenix.
- B. Droppleman
ADEQ Meteorologist
What Flag Should I Fly?
Thursday: Yellow
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Friday: Yellow
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