California air quality

Mira Monte, California Air Quality

Ventura County34.434, -119.285

The nearest monitor to Mira Monte, at Ojai - Ojai Ave., 3 miles away, measured an index of 18 at Tue, 3:00 AM PDT, which is Good for fine particles (PM2.5). Ventura County APCD forecasts Good for Ojai today and Good tomorrow.

Measured now
18 · Good
Today
45 · Good
Tomorrow
47 · Good
Pollutant
PM2.5

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Mira Monte, California. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Mira Monte, California Open the live map with the particulate forecast

Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.

None are in force near Mira Monte right now. All California warnings.

Now

Good

Nearest monitor
Ojai - Ojai Ave., 3 miles away (site 061111004)
Index measured
18 · Good
Measured at
Tue, 3:00 AM PDT
Fine particles
4 µg/m³
Ozone
3 ppb
Reporting area
Ojai, CA, 3 miles away
Reported by
Ventura County APCD
Area index
18 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

Ventura County APCD's own forecast for Ojai, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood45Ozone
TomorrowGood47Ozone
Thursday, September 24Moderate63Ozone
Friday, September 25Good45Ozone
Saturday, September 26Good43Ozone

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 48, Good, around Tue, 11:00 PM PDT, from the run issued Mon, 11:00 PM PDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Tue, 1:00 AM PDT28Good5.5
Tue, 2:00 AM PDT29Good5.4
Tue, 3:00 AM PDT31Good6.2
Tue, 4:00 AM PDT31Good5.9
Tue, 5:00 AM PDT33Good6.6
Tue, 6:00 AM PDT35Good7.1
Tue, 7:00 AM PDT38Good7.615
Tue, 8:00 AM PDT36Good5.815.1
Tue, 9:00 AM PDT40Good8.216.5
Tue, 10:00 AM PDT46Good9.419.1
Tue, 11:00 AM PDT47Good8.522.3
Tue, 12:00 PM PDT44Good7.725.9
Tue, 1:00 PM PDT45Good8.229.6
Tue, 2:00 PM PDT45Good8.333.2
Tue, 3:00 PM PDT43Good7.337.1
Tue, 4:00 PM PDT44Good8.441
Tue, 5:00 PM PDT42Good743.2
Tue, 6:00 PM PDT42Good7.344
Tue, 7:00 PM PDT41Good5.544
Tue, 8:00 PM PDT39Good6.742.9
Tue, 9:00 PM PDT41Good8.541.1
Tue, 10:00 PM PDT47Good9.838
Tue, 11:00 PM PDT48Good8.834.4
Wed, 12:00 AM PDT47Good8.530.8
Wed, 1:00 AM PDT44Good7.327.7
Wed, 2:00 AM PDT39Good5.924.6
Wed, 3:00 AM PDT41Good7.921.9
Wed, 4:00 AM PDT39Good6.919.9
Wed, 5:00 AM PDT39Good718.5
Wed, 6:00 AM PDT38Good6.618.2
Wed, 7:00 AM PDT38Good6.818.1
Wed, 8:00 AM PDT32Good4.817.9
Wed, 9:00 AM PDT34Good6.518.6
Wed, 10:00 AM PDT34Good6.120.5
Wed, 11:00 AM PDT34Good6.322.9
Wed, 12:00 PM PDT35Good6.625.9
Wed, 1:00 PM PDT39Good8.229.4
Wed, 2:00 PM PDT39Good7.333.2
Wed, 3:00 PM PDT39Good6.937.3
Wed, 4:00 PM PDT41Good7.941.8
Wed, 5:00 PM PDT41Good6.744.9
Wed, 6:00 PM PDT43Good6.246.6
Wed, 7:00 PM PDT44Good5.647.4
Wed, 8:00 PM PDT43Good6.346.8
Wed, 9:00 PM PDT42Good8.545.5
Wed, 10:00 PM PDT41Good7.842.2
Wed, 11:00 PM PDT38Good6.338.3
Thu, 12:00 AM PDT40Good7.733.9
Thu, 1:00 AM PDT39Good6.629.8
Thu, 2:00 AM PDT37Good6.225.9
Thu, 3:00 AM PDT37Good6.622.2
Thu, 4:00 AM PDT34Good5.519.5
Thu, 5:00 AM PDT32Good5.117.2
Thu, 6:00 AM PDT31Good5.516.6
Thu, 7:00 AM PDT33Good6.616.3
Thu, 8:00 AM PDT31Good5.116.4
Thu, 9:00 AM PDT34Good6.917.5
Thu, 10:00 AM PDT36Good7.419.8
Thu, 11:00 AM PDT37Good7.123
Thu, 12:00 PM PDT38Good7.226.6
Thu, 1:00 PM PDT40Good7.930.8
Thu, 2:00 PM PDT43Good8.535
Thu, 3:00 PM PDT42Good7.439.3
Thu, 4:00 PM PDT46Good9.243.6
Thu, 5:00 PM PDT46Good8.246.5
Thu, 6:00 PM PDT46Good8.148.1
Thu, 7:00 PM PDT44Good6.848.4
Thu, 8:00 PM PDT44Good7.547.4
Thu, 9:00 PM PDT44Good8.645.1
Thu, 10:00 PM PDT46Good9.141.3
Thu, 11:00 PM PDT43Good6.637.4

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s analysts have not drawn smoke over Mira Monte in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 2.7 µg/m³ around Wed, 12:00 AM PDT.

Smoke on the radar over Mira Monte

What this means

Good

Air quality is satisfactory, and air pollution poses little or no risk.

Who is affected
Nobody is expected to be affected.
What to do
It is a good day to be outside.
Index range
0 to 50

Category descriptions are the Environmental Protection Agency’s own.

What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.

Nearby

The nearest towns with a page of their own, closest first.

Weather forecast for Mira MonteWarnings in Ventura CountyLive radar over Mira MonteCalifornia air quality

Sources

Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.