Indiana air quality

Pendleton, Indiana Air Quality

Madison County39.998, -85.747

The nearest monitor to Pendleton, at Anderson-Eastside Elem. Sch, 10 miles away, measured an index of 23 at Mon, 2:00 PM EDT, which is Good for ground-level ozone. Indianapolis Office of Sustainability forecasts Good for Indianapolis today and Good tomorrow.

Measured now
23 · Good
Today
— · Good
Tomorrow
— · Good
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Pendleton, Indiana 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 Pendleton right now. All Indiana warnings.

Now

Good

Nearest monitor
Anderson-Eastside Elem. Sch, 10 miles away (site 180950011)
Index measured
23 · Good
Measured at
Mon, 2:00 PM EDT
Fine particles
3.3 µg/m³
Ozone
26 ppb
Reporting area
Indianapolis, IN, 29 miles away
Reported by
Indianapolis Office of Sustainability
Area index
31 · Good

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

Today and tomorrow

Indianapolis Office of Sustainability's own forecast for Indianapolis, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGoodPM2.5
TomorrowGoodPM2.5
Wednesday, September 23GoodPM2.5

The forecaster’s discussion

Written by Indianapolis Office of Sustainability for Indianapolis and filed with AirNow.

Central Regions: Ozone was Good over the past forecast period, while PM2.5 was a mixture of Good/Moderate. (Past Friday through Sunday.) As of 12Z this morning, on the radar is a widespread area of showers and isolated thunderstorms mainly around I-70 and south of I-70. This large body of precipitation is moving slowly east southeast. Meanwhile, a stationary boundary is lingering to the south of Indiana, over Kentucky this morning and will remain today, before finally dropping south of Kentucky by this evening. Rain will eventually diminish throughout the day as the boundary drops farther south and conditions will become mostly cloudy. Highs this afternoon will have quite the gradient ranging from the mid 60's (north) to around 80 (southern counties) of central Indiana. Dew points will be in the lower 60's. Winds will be northeast at 5 to 10 mph with gusts up to 20 mph. A weak wave moves across the area on Tuesday and could mean some isolated showers and thunderstorms. Seasonable temperatures will continue into tomorrow (Tuesday) and actually through the rest of the work week! Look for highs on Tuesday afternoon in the upper 60's (north) to mid-70's (south) with mostly cloudy skies. Dew points will be in the upper 50's. Winds will be northeast at 10 mph with gusts to 20 mph. Similar high temperatures and dew points are in store for Wednesday. Winds will continue to be from the northeast at 10 mph. As for guidance this forecast period, the Canadian is predicting Ozone to be Good through Wednesday. The 06Z BC NOAA model is also predicting Good ozone through Wednesday, which both models make sense as the area is getting a decent rain today, which may help clean out the area. Then the winds remain out of the northeast through the period at or above 10 mph, and it's hard to get Ozone growth this these kind of winds. Will therefore go with Good for ozone for the entire period for both sites, Terre Haute and Indianapolis. As for PM2.5, the NOAA model is also predicting Good through Wednesday, which makes sense for the above reasoning for Ozone. Will as a result go with Good for the entire period for both sites for PM2.5 as well.

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 36, Good, around Tue, 4:00 PM EDT, from the run issued Mon, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 10:00 AM EDT21Good4
Mon, 11:00 AM EDT21Good4
Mon, 12:00 PM EDT18Good2.7
Mon, 1:00 PM EDT12Good1.4
Mon, 2:00 PM EDT11Good1.7
Mon, 3:00 PM EDT9Good1.5
Mon, 4:00 PM EDT17Good218.2
Mon, 5:00 PM EDT17Good2.418.1
Mon, 6:00 PM EDT17Good2.318.3
Mon, 7:00 PM EDT17Good1.718.4
Mon, 8:00 PM EDT17Good2.818.3
Mon, 9:00 PM EDT18Good4.118.4
Mon, 10:00 PM EDT19Good3.719.3
Mon, 11:00 PM EDT18Good2.619.9
Tue, 12:00 AM EDT19Good2.220.2
Tue, 1:00 AM EDT19Good1.720.4
Tue, 2:00 AM EDT19Good220.3
Tue, 3:00 AM EDT19Good2.720.1
Tue, 4:00 AM EDT18Good2.719.6
Tue, 5:00 AM EDT18Good2.919.1
Tue, 6:00 AM EDT17Good3.118.2
Tue, 7:00 AM EDT16Good2.916.8
Tue, 8:00 AM EDT16Good2.815.8
Tue, 9:00 AM EDT14Good1.915.1
Tue, 10:00 AM EDT14Good314.7
Tue, 11:00 AM EDT20Good4.514.8
Tue, 12:00 PM EDT26Good5.815.8
Tue, 1:00 PM EDT31Good6.517.4
Tue, 2:00 PM EDT34Good6.918.9
Tue, 3:00 PM EDT35Good6.521.2
Tue, 4:00 PM EDT36Good6.823.7
Tue, 5:00 PM EDT34Good5.726
Tue, 6:00 PM EDT30Good4.827.8
Tue, 7:00 PM EDT26Good3.228.8
Tue, 8:00 PM EDT26Good3.428.7
Tue, 9:00 PM EDT26Good3.928.4
Tue, 10:00 PM EDT26Good5.328.4
Tue, 11:00 PM EDT26Good428.1
Wed, 12:00 AM EDT25Good427.3
Wed, 1:00 AM EDT24Good4.226
Wed, 2:00 AM EDT23Good4.324.9
Wed, 3:00 AM EDT24Good4.524.3
Wed, 4:00 AM EDT22Good3.523.5
Wed, 5:00 AM EDT20Good322.3
Wed, 6:00 AM EDT19Good2.920.7
Wed, 7:00 AM EDT17Good2.518.6
Wed, 8:00 AM EDT16Good316.6
Wed, 9:00 AM EDT18Good3.814.9
Wed, 10:00 AM EDT26Good613.7
Wed, 11:00 AM EDT27Good5.412.6
Wed, 12:00 PM EDT28Good5.412.2
Wed, 1:00 PM EDT25Good3.912.6
Wed, 2:00 PM EDT26Good4.713.3
Wed, 3:00 PM EDT26Good4.715.2
Wed, 4:00 PM EDT27Good5.217.6
Wed, 5:00 PM EDT30Good620.1
Wed, 6:00 PM EDT32Good6.222.1
Wed, 7:00 PM EDT28Good4.223.1
Wed, 8:00 PM EDT21Good2.623.2
Wed, 9:00 PM EDT21Good3.223
Wed, 10:00 PM EDT23Good4.922.7
Wed, 11:00 PM EDT22Good3.821.8
Thu, 12:00 AM EDT19Good2.320.8
Thu, 1:00 AM EDT18Good1.519.9
Thu, 2:00 AM EDT18Good1.219.1
Thu, 3:00 AM EDT17Good0.918.9
Thu, 4:00 AM EDT18Good0.519
Thu, 5:00 AM EDT17Good0.318.7
Thu, 6:00 AM EDT17Good0.518.2
Thu, 7:00 AM EDT15Good0.616.9
Thu, 8:00 AM EDT14Good0.615.6

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 Pendleton in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 0.2 µg/m³ around Sun, 11:00 PM EDT.

Smoke on the radar over Pendleton

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 PendletonWarnings in Madison CountyLive radar over PendletonIndiana 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.