AirNow · California
Air quality in Colfax
Right now51Moderate
Air quality is acceptable. People who are unusually sensitive to air pollution should consider cutting back on long or hard exercise outdoors. Main pollutant: ozone. Measured 15:00 PDT.
Forecast
Today
ozone90 · Moderate
ozone90 · Moderate
Thu, Oct 8
ozone101 · Unhealthy for Sensitive Groups
ozone101 · Unhealthy for Sensitive Groups
Fri, Oct 9
ozone84 · Moderate
ozone84 · Moderate
Sat, Oct 10
ozone44 · Good
ozone44 · Good
Forecaster's note
Wednesday, a ridge of high pressure aloft will produce sunny skies with temperatures near 100F. These conditions, combined with lingering thin smoke from regional fires, will enhance ground-level ozone formation. As a result, ozone levels will be high-Moderate. Thursday, a strong morning temperature inversion will confine pollutants and ozone precursors near the ground. In addition, ample sunshine and afternoon temperatures near 100F will continue to promote ozone development, while remnant thin smoke will enhance ozone production. Thus, ozone levels will be Unhealthy for Sensitive Groups. F
From AirNow (forecast by Placer County APCD), checked every 30 minutes. Current readings are preliminary.