Idaho air quality

Camas County, Idaho Air Quality

Camas County43.463, -114.806

The nearest monitor to Camas County, at Ketchum, 27 miles away, measured an index of 11 at Thu, 9:00 PM MDT, which is Good for fine particles (PM2.5). Idaho Department of Environmental Quality forecasts Good for Ketchum today and Good tomorrow.

Measured now
11 · Good
Today
15 · Good
Tomorrow
17 · Good
Pollutant
PM2.5

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Camas County, Idaho 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 Camas County right now. All Idaho warnings.

Now

Good

Nearest monitor
Ketchum, 27 miles away (site 160130004)
Index measured
11 · Good
Measured at
Thu, 9:00 PM MDT
Fine particles
-1.2 µg/m³
Reporting area
Ketchum, ID, 27 miles away
Reported by
Idaho Department of Environmental Quality
Area index
28 · Good

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

Today and tomorrow

Idaho Department of Environmental Quality's own forecast for Ketchum, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood15PM2.5
TomorrowGood17PM2.5
Saturday, September 26GoodPM2.5
Sunday, September 27GoodPM2.5
Monday, September 28GoodPM2.5
Tuesday, September 29GoodPM2.5

The forecaster’s discussion

Written by Idaho Department of Environmental Quality for Ketchum and filed with AirNow.

Today air quality is in the 'Good' category.

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 42, Good, around Fri, 5:00 PM MDT, from the run issued Thu, 9:00 PM MDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Thu, 10:00 PM MDT40Good3.243.9
Thu, 11:00 PM MDT39Good2.842.8
Fri, 12:00 AM MDT38Good2.941.4
Fri, 1:00 AM MDT37Good3.140.1
Fri, 2:00 AM MDT35Good2.938.8
Fri, 3:00 AM MDT34Good2.537.5
Fri, 4:00 AM MDT33Good2.636.4
Fri, 5:00 AM MDT32Good2.535.5
Fri, 6:00 AM MDT32Good1.635.2
Fri, 7:00 AM MDT31Good1.934.8
Fri, 8:00 AM MDT31Good1.634.3
Fri, 9:00 AM MDT31Good2.234
Fri, 10:00 AM MDT31Good2.634.4
Fri, 11:00 AM MDT31Good2.735
Fri, 12:00 PM MDT33Good436.1
Fri, 1:00 PM MDT34Good4.437.7
Fri, 2:00 PM MDT36Good3.639.5
Fri, 3:00 PM MDT38Good4.141.6
Fri, 4:00 PM MDT40Good4.443.9
Fri, 5:00 PM MDT42Good3.845.6
Fri, 6:00 PM MDT42Good245.9
Fri, 7:00 PM MDT42Good1.445.5
Fri, 8:00 PM MDT41Good144.3
Fri, 9:00 PM MDT39Good1.342.4
Fri, 10:00 PM MDT37Good1.240.1
Fri, 11:00 PM MDT34Good0.137.6
Sat, 12:00 AM MDT31Good0.734.8
Sat, 1:00 AM MDT30Good0.332.3
Sat, 2:00 AM MDT28Good0.330.6
Sat, 3:00 AM MDT27Good0.429.5
Sat, 4:00 AM MDT26Good0.428.9
Sat, 5:00 AM MDT26Good0.328.6
Sat, 6:00 AM MDT26Good0.328.5
Sat, 7:00 AM MDT26Good0.228.7
Sat, 8:00 AM MDT26Good0.328.9
Sat, 9:00 AM MDT27Good0.329.3
Sat, 10:00 AM MDT28Good2.530.1
Sat, 11:00 AM MDT29Good0.331.3
Sat, 12:00 PM MDT30Good0.332.5
Sat, 1:00 PM MDT31Good0.433.7
Sat, 2:00 PM MDT32Good0.235.1
Sat, 3:00 PM MDT33Good0.436.4
Sat, 4:00 PM MDT35Good0.438
Sat, 5:00 PM MDT36Good1.239.5
Sat, 6:00 PM MDT37Good0.340.4
Sat, 7:00 PM MDT37Good0.940.7
Sat, 8:00 PM MDT37Good0.540.7
Sat, 9:00 PM MDT37Good0.440.4
Sat, 10:00 PM MDT36Good0.639.5
Sat, 11:00 PM MDT35Good0.438.3
Sun, 12:00 AM MDT34Good0.337.1
Sun, 1:00 AM MDT32Good0.335.7
Sun, 2:00 AM MDT31Good0.334.3
Sun, 3:00 AM MDT30Good0.333
Sun, 4:00 AM MDT29Good0.331.7
Sun, 5:00 AM MDT28Good0.130.6
Sun, 6:00 AM MDT27Good0.229.9

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 Camas County in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 1 µg/m³ around Thu, 11:00 PM MDT.

Smoke on the radar over Camas County

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 Camas CountyWarnings in Camas CountyLive radar over Camas CountyIdaho 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.