AQD | Tucson Forecast
Updated On: 4/25/2025 - 7:03 AM
Click on each day to view forecast.
Friday Forecast:
Ozone
45 AQI
Max 8-hr Avg: 49 ppb
Max 8-hr Avg: 49 ppb
PM10
38 AQI
24-hr Avg: 41 µg/m3
24-hr Avg: 41 µg/m3
PM2.5
45 AQI
24-hr Avg: 8.1 µg/m3
24-hr Avg: 8.1 µg/m3
Saturday Forecast:
Ozone
44 AQI
Max 8-hr Avg: 48 ppb
Max 8-hr Avg: 48 ppb
PM10
39 AQI
24-hr Avg: 42 µg/m3
24-hr Avg: 42 µg/m3
PM2.5
48 AQI
24-hr Avg: 8.6 µg/m3
24-hr Avg: 8.6 µg/m3
Sunday Forecast:
Ozone
49 AQI
Max 8-hr Avg: 53 ppb
Max 8-hr Avg: 53 ppb
PM10
31 AQI
24-hr Avg: 34 µg/m3
24-hr Avg: 34 µg/m3
PM2.5
38 AQI
24-hr Avg: 6.9 µg/m3
24-hr Avg: 6.9 µg/m3
Monday Forecast:
Ozone
54 AQI
Max 8-hr Avg: 56 ppb
Max 8-hr Avg: 56 ppb
PM10
30 AQI
24-hr Avg: 32 µg/m3
24-hr Avg: 32 µg/m3
PM2.5
36 AQI
24-hr Avg: 6.5 µg/m3
24-hr Avg: 6.5 µg/m3
Tuesday Forecast:
Ozone
58 AQI
Max 8-hr Avg: 57 ppb
Max 8-hr Avg: 57 ppb
PM10
31 AQI
24-hr Avg: 33 µg/m3
24-hr Avg: 33 µg/m3
PM2.5
37 AQI
24-hr Avg: 6.7 µg/m3
24-hr Avg: 6.7 µg/m3
Air Quality By Pollutant:
Pollutant
Friday
4/25/2025
4/25/2025
Saturday
4/26/2025
4/26/2025
Sunday
4/27/2025
4/27/2025
Monday
4/28/2025
4/28/2025
Tuesday
4/29/2025
4/29/2025
O3
45
44
49
54
58
PM10
38
39
31
30
31
PM2.5
45
48
38
36
37
Pollutant
FRI
SAT
SUN
MON
TUE
O3
45
44
49
54
58
PM10
38
39
31
30
31
PM2.5
45
48
38
36
37
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns
Forecast Discussion:
Hold onto your hats because it's going to be a windy few days here in southern Arizona.
Currently, a cut-off low pressure system is centered just off the California coast, and will move to the east throughout the day. Strong southwesterly winds will allow PM10 to increase over the next couple of days, with blowing dust possible during the windiest periods.
This will also allow ozone levels to decrease slightly, but levels will recover by early next week as high pressure reestablishes over the region.
PM10 levels early next week will become mostly locally driven, coming in the Good AQI category.
Have a great weekend and we'll see you on Monday.
- B. Droppleman
ADEQ Meteorologist
Currently, a cut-off low pressure system is centered just off the California coast, and will move to the east throughout the day. Strong southwesterly winds will allow PM10 to increase over the next couple of days, with blowing dust possible during the windiest periods.
This will also allow ozone levels to decrease slightly, but levels will recover by early next week as high pressure reestablishes over the region.
PM10 levels early next week will become mostly locally driven, coming in the Good AQI category.
Have a great weekend and we'll see you on Monday.
- B. Droppleman
ADEQ Meteorologist
What Flag Should I Fly?
Sunday: Green
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Monday: Yellow
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