Phoenix Forecast
Air Quality Hourly Forecast | Phoenix
Updated On: 3/23/2023 - 8:48 AM
Click on each day to view forecast.
Thursday Forecast:
Ozone
46 AQI
Max 8-hr Avg: 50 ppb
Max 8-hr Avg: 50 ppb
PM10
32 AQI
24-hr Avg: 35 µg/m3
24-hr Avg: 35 µg/m3
PM2.5
24 AQI
24-hr Avg: 5.7 µg/m3
24-hr Avg: 5.7 µg/m3
Friday Forecast:
Ozone
43 AQI
Max 8-hr Avg: 46 ppb
Max 8-hr Avg: 46 ppb
PM10
30 AQI
24-hr Avg: 32 µg/m3
24-hr Avg: 32 µg/m3
PM2.5
21 AQI
24-hr Avg: 5.1 µg/m3
24-hr Avg: 5.1 µg/m3
Saturday Forecast:
Ozone
42 AQI
Max 8-hr Avg: 45 ppb
Max 8-hr Avg: 45 ppb
PM10
28 AQI
24-hr Avg: 30 µg/m3
24-hr Avg: 30 µg/m3
PM2.5
27 AQI
24-hr Avg: 6.5 µg/m3
24-hr Avg: 6.5 µg/m3
Sunday Forecast:
Ozone
41 AQI
Max 8-hr Avg: 44 ppb
Max 8-hr Avg: 44 ppb
PM10
27 AQI
24-hr Avg: 29 µg/m3
24-hr Avg: 29 µg/m3
PM2.5
29 AQI
24-hr Avg: 6.9 µg/m3
24-hr Avg: 6.9 µg/m3
Monday Forecast:
Ozone
48 AQI
Max 8-hr Avg: 52 ppb
Max 8-hr Avg: 52 ppb
PM10
31 AQI
24-hr Avg: 34 µg/m3
24-hr Avg: 34 µg/m3
PM2.5
25 AQI
24-hr Avg: 6.1 µg/m3
24-hr Avg: 6.1 µg/m3
Air Quality By Pollutant:
Pollutant
Thursday
3/23/2023
3/23/2023
Friday
3/24/2023
3/24/2023
Saturday
3/25/2023
3/25/2023
Sunday
3/26/2023
3/26/2023
Monday
3/27/2023
3/27/2023
O3
46
43
42
41
48
PM10
32
30
28
27
31
PM2.5
24
21
27
29
25
Pollutant
THU
FRI
SAT
SUN
MON
O3
46
43
42
41
48
PM10
32
30
28
27
31
PM2.5
24
21
27
29
25
Forecast Discussion:
Well, it's finally a clear morning, after several consecutive mornings of soupy skies. The clouds associated with yesterday's storm system have moved on to the east. But it is a little chillier this morning, with low temperatures having dropped into the upper 40s (at Sky Harbor).One thing that hasn't changed since yesterday is the low PM10 (dust) and PM2.5 (smoke) levels. The widespread rainfall has definitely stabilized dust and PM from most local sources.
Looking ahead, though we will be done with rain, at least for the next week, the overall weather pattern will remain active. Various waves of low pressure will pass through the region and provide the Valley with breezy afternoons. They will also keep temperatures below normal for this time of year. Highs will struggle to reach the 70s over the weekend.
In regards to air quality, the active weather pattern is expected to limit ozone levels. Low pressure waves are good at ventilating the atmosphere, preventing ozone from building up too much. Ozone is forecast in the Good Air Quality Index (AQI) category for now. But we'll keep watching daily ozone trends.
Moreover, given the recent rain, PM10 levels will be limited each day. Afternoon breezes will also help to reduce any PM10 from morning local activity, particularly in industrial areas south/southwest of Phoenix.
PM2.5 typically rebounds better than PM10 after rain. Therefore, PM2.5 levels may be slightly elevated in the mornings/evenings, especially given the cooler overnight temperatures.
Overall, each pollutant is forecast in the Good AQI category for now. Check back tomorrow for the next forecast!
- M. Graves
ADEQ Meteorologist
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