Portland air quality and smoke forecast

Current government PM2.5 readings within 50 km of Portland, with separate NASA GEOS-CF, CAMS and SILAM total-PM2.5 forecasts sampled at the locality centre.

Updated 27 Aug, 10:17 AM AEST · Location forecast · current monitors within 50 km of Portland · concentrations, not an Australian AQI

Current air quality and forecast

Now · observedGood6.7 µg/m³ median · 2 current monitors

Next 48 hoursGood to Fair3.3–12.7 µg/m³ · 3 of 3 models

Forecast peak12.7 µg/m³29 Aug, 6:00 AM AEST · CAMS

Nearby fires

150 km radius

No agency fire incidents are currently reported within 150 km of this location.

Straight-line distance from the Portland centre to the reported incident location, or to the mapped fire boundary where an agency has published one. A fire without a published boundary may extend closer than its reported location suggests.

Last 24 hours and next 48 hours across Portland

Range across monitors

About this chart

The observed line is the hourly median across reporting monitors and the shaded range shows local variation. NASA GEOS-CF, CAMS and SILAM are separate total surface PM2.5 research forecasts sampled near the Portland locality centre. They are not smoke-only, official health forecasts or blended with observations.

Forecast

Next 6 hoursGood1.9–3.9 µg/m³ · 3 of 3 models

Next 12 hoursGood2.0–3.9 µg/m³ · 3 of 3 models

Next 24 hoursGood3.3–8.2 µg/m³ · 3 of 3 models

Next 48 hoursFair3.3–12.7 µg/m³ · 3 of 3 models

Model detail3 available · 48-hour peak table

Model	48-hour peak	Category	Peak around
NASA GEOS-CF	3.3 µg/m³	Good	28 Aug, 8:30 AM AEST
CAMS	12.7 µg/m³	Fair	29 Aug, 6:00 AM AEST
FMI SILAM	5.8 µg/m³	Good	28 Aug, 9:00 AM AEST

Highest readings right now

current hourly PM2.5

All government monitors (2 total; 2 current)

Monitor	PM2.5 µg/m³	Air quality	Observed local
Heywood ^†	8.6	Good	27 Aug, 10:00 AM AEST
Portland ^†	4.9	Good	27 Aug, 10:00 AM AEST

^† The publishing agency identifies these as indicative sensors. They add local coverage but are not reference-grade monitors.