AQD | Phoenix Forecast
Updated On: 5/1/2024 - 8:20 AM
Click on each day to view forecast.
Wednesday Forecast:
Ozone
74 AQI
Max 8-hr Avg: 62 ppb
Max 8-hr Avg: 62 ppb
PM10
48 AQI
24-hr Avg: 52 µg/m3
24-hr Avg: 52 µg/m3
PM2.5
38 AQI
24-hr Avg: 6.8 µg/m3
24-hr Avg: 6.8 µg/m3
Thursday Forecast:
Ozone
87 AQI
Max 8-hr Avg: 66 ppb
Max 8-hr Avg: 66 ppb
PM10
51 AQI
24-hr Avg: 56 µg/m3
24-hr Avg: 56 µg/m3
PM2.5
43 AQI
24-hr Avg: 7.8 µg/m3
24-hr Avg: 7.8 µg/m3
Friday Forecast:
Ozone
84 AQI
Max 8-hr Avg: 65 ppb
Max 8-hr Avg: 65 ppb
PM10
52 AQI
24-hr Avg: 58 µg/m3
24-hr Avg: 58 µg/m3
PM2.5
42 AQI
24-hr Avg: 7.6 µg/m3
24-hr Avg: 7.6 µg/m3
Saturday Forecast:
Ozone
58 AQI
Max 8-hr Avg: 57 ppb
Max 8-hr Avg: 57 ppb
PM10
45 AQI
24-hr Avg: 49 µg/m3
24-hr Avg: 49 µg/m3
PM2.5
44 AQI
24-hr Avg: 7.9 µg/m3
24-hr Avg: 7.9 µg/m3
Sunday Forecast:
Ozone
49 AQI
Max 8-hr Avg: 53 ppb
Max 8-hr Avg: 53 ppb
PM10
63 AQI
24-hr Avg: 79 µg/m3
24-hr Avg: 79 µg/m3
PM2.5
49 AQI
24-hr Avg: 8.8 µg/m3
24-hr Avg: 8.8 µg/m3
Air Quality By Pollutant:
Pollutant
Wednesday
5/1/2024
5/1/2024
Thursday
5/2/2024
5/2/2024
Friday
5/3/2024
5/3/2024
Saturday
5/4/2024
5/4/2024
Sunday
5/5/2024
5/5/2024
O3
74
87
84
58
49
PM10
48
51
52
45
63
PM2.5
38
43
42
44
49
Pollutant
WED
THU
FRI
SAT
SUN
O3
74
87
84
58
49
PM10
48
51
52
45
63
PM2.5
38
43
42
44
49
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns
Forecast Discussion:
Ozone is forecast in the Moderate AQI category over the next several days. In general, relatively light winds and sunny skies will favor formation of local ozone. The good news however, is that low pressure over the West will prevent any high pressure from developing, so ozone levels should remain capped in the mid to upper Moderate AQI range.
Then by Saturday into Sunday, a strong low-pressure wave is forecast to dive into the Southwest, resulting in breezy conditions on Saturday, and much winder conditions on Sunday. Daytime temperatures should also cool down by a few degrees on Sunday. During this time, ozone levels are forecast to decrease because of the greater atmospheric dispersion. However, PM10 (dust) levels are forecast to increase, given the potential for dust, particularly on Sunday. Moderate PM10 levels are currently forecast for Sunday.
Lastly, weekdays will likely continue to see Moderate PM10 levels because of local activity in industrial areas south/southwest of Phoenix. Elsewhere around the Valley should see lower PM10 levels, though.
Check back tomorrow morning for the next update!
- M. Graves
ADEQ Meteorologist
Then by Saturday into Sunday, a strong low-pressure wave is forecast to dive into the Southwest, resulting in breezy conditions on Saturday, and much winder conditions on Sunday. Daytime temperatures should also cool down by a few degrees on Sunday. During this time, ozone levels are forecast to decrease because of the greater atmospheric dispersion. However, PM10 (dust) levels are forecast to increase, given the potential for dust, particularly on Sunday. Moderate PM10 levels are currently forecast for Sunday.
Lastly, weekdays will likely continue to see Moderate PM10 levels because of local activity in industrial areas south/southwest of Phoenix. Elsewhere around the Valley should see lower PM10 levels, though.
Check back tomorrow morning for the next update!
- M. Graves
ADEQ Meteorologist
What Flag Should I Fly?
Wednesday: Yellow
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Thursday: Yellow
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