Air Quality Forecast Guidance for Hillsboro, OR

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 45.52 N, longitude: 122.99 W.
Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.

A FAQ page is available.
More information...
24Hr Maximum
Ending
Maximum 1 Hour Average Ozone
Concentration (PPB)*
Maximum 8 Hour Average Ozone
Concentration (PPB)*
Tomorrow
(Ending 07/29, 4Z)
40
38
*Due to grid interpolation methods, the maximum 1- and 8-hour ozone concentration values may have
values slightly higher or lower than those of the corresponding hourly ozone concentrations.

Ozone
Ending Time
1 Hour Average Ozone
Concentration (PPB)

12Z Model Run
8 Hour Average Ozone
Concentration (PPB)

12Z Model Run
Thu, 28 Jul  03 PM
38
30
Thu, 28 Jul  04 PM
39
33
Thu, 28 Jul   05 PM
40
35
Thu, 28 Jul   06 PM
39
37
Thu, 28 Jul   07 PM
36
38
Thu, 28 Jul   08 PM
30
37
Thu, 28 Jul   09 PM
23
35
Thu, 28 Jul   10 PM
20
33
Thu, 28 Jul   11 PM
19
31
Fri, 29 Jul   12 AM
20
28
Fri, 29 Jul   01 AM
20
26
Fri, 29 Jul   02 AM
20
24
Fri, 29 Jul   03 AM
20
21
Fri, 29 Jul   04 AM
19
20
Fri, 29 Jul   05 AM
19
20
Fri, 29 Jul   06 AM
19
20
Fri, 29 Jul   07 AM
19
20
Fri, 29 Jul   08 AM
21
20
Fri, 29 Jul   09 AM
25
20
Fri, 29 Jul   10 AM
29
21
Fri, 29 Jul   11 AM
32
23
Fri, 29 Jul   12 PM
35
25
Fri, 29 Jul   01 PM
37
27
Fri, 29 Jul   02 PM
38
30
Fri, 29 Jul   03 PM
38
32
Fri, 29 Jul   04 PM
38
34
Fri, 29 Jul   05 PM
35
35
Fri, 29 Jul   06 PM
32
36
Fri, 29 Jul   07 PM
29
35
Fri, 29 Jul   08 PM
24
34
Fri, 29 Jul   09 PM
20
32
Fri, 29 Jul   10 PM
19
30
Fri, 29 Jul   11 PM
19
27
Sat, 30 Jul   12 AM
18
24
Sat, 30 Jul   01 AM
17
22
Sat, 30 Jul   02 AM
17
20
Sat, 30 Jul   03 AM
17
19
Sat, 30 Jul   04 AM
17
18
Sat, 30 Jul   05 AM
16
17
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Thu, 28 Jul  03 PM
0
0
Thu, 28 Jul  04 PM
0
0
Thu, 28 Jul  05 PM
0
0
Thu, 28 Jul  06 PM
0
0
Thu, 28 Jul  07 PM
0
0
Thu, 28 Jul  08 PM
0
0
Thu, 28 Jul  09 PM
0
0
Thu, 28 Jul  10 PM
0
0
Thu, 28 Jul  11 PM
0
0
Fri, 29 Jul  12 AM
0
0
Fri, 29 Jul  01 AM
0
0
Fri, 29 Jul  02 AM
0
0
Fri, 29 Jul  03 AM
0
0
Fri, 29 Jul  04 AM
0
0
Fri, 29 Jul  05 AM
0
0
Fri, 29 Jul  06 AM
0
0
Fri, 29 Jul  07 AM
0
0
Fri, 29 Jul  08 AM
0
0
Fri, 29 Jul  09 AM
0
0
Fri, 29 Jul  10 AM
0
0
Fri, 29 Jul  11 AM
0
0
Fri, 29 Jul  12 PM
0
0
Fri, 29 Jul  01 PM
0
0
Fri, 29 Jul  02 PM
0
0
Fri, 29 Jul  03 PM
0
0
Fri, 29 Jul  04 PM
0
0
Fri, 29 Jul  05 PM
0
0
Fri, 29 Jul  06 PM
0
0
Fri, 29 Jul  07 PM
0
0
Fri, 29 Jul  08 PM
0
0
Fri, 29 Jul  09 PM
0
0
Fri, 29 Jul  10 PM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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