AQ Index for Indiana

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Air Quality Index for Indiana

The highest AQ index in Indiana (as of 1:00 CDT) is currently the Hammond-Gary area. Particle Pollution (PM10) is measuring at 52 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Over the next few days, the highest Particle Pollution (PM2.5) will be in the Evansville area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.

Weather Analysis and Air Quality Forecasting Decisions: Ozone:  Monitoring for ozone started March 1st but forecasting will begin as soon as conditions warm up more. Fine Particulate:  Currently mostly clear and very cool with temperatures in the upper-30's. A Flood Warning is in effect from the monsoonal rains over the weekend and a Freeze Warning for lows in the 20's tonight. A surface and upper low bringing snow to Michigan and Wisconsin will push a cold front southward through the entire state by noon today bringing mostly sunny but cold days today and Tuesday. Surface ridge will approach from the northwest and be over Indiana by Tuesday afternoon. After a frosty Wednesday morning, light and variable winds will increase through the day as a low in Nebraska will move into the Great Lakes bringing rain to the southern parts of the state beginning just before midnight Wednesday. Thursday winds will gust up to 25 MPH from the south as light showers will linger all day with rain amounts only about one-third of an inch but highs in the mid-60's. Friday winds turn northerly with temperatures only in the mid-50's. The NOAA model shows a definite Good for Tuesday along with a borderline Good for Wednesday. On the Canadian smoke model, a number of fires will bring a high amount of smoke to Kansas and adjacent states but is not forecast to make it east of the Mississippi. The Canadian model shows Good for Tuesday and some amount of particulates in the state on Wednesday. Also on Wednesday, with a strong morning inversion and light and variable winds we believe readings will just make it into the Moderate range. Nearly one-third of an inch of rain should keep readings in the Good range on Thursday and the passage of that low Thursday night will carry over Good air quality into Friday.

Range0 - 5051 - 100101 - 150151 - 200201 - 300301 - 500
Color
CategoryGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardous
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Last Updated 17 minutes ago

AQ Index Forecast by County in Indiana

Below is a list of counties in Indiana. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.

Marion Allen St. Joseph Vanderburgh Tippecanoe
Elkhart Monroe Hamilton Vigo Delaware
Madison Lake LaPorte Johnson Howard
Bartholomew Clark Floyd Porter Wayne
Hendricks Boone Grant Hancock Jackson
Shelby Cass Henry Knox Huntington
Montgomery Kosciusko Dubois Clinton Lawrence
Dekalb Fayette Daviess Morgan Jefferson
Miami Decatur Putnam Wells Marshall
Wabash Adams Noble Whitley Gibson
Steuben Clay Perry Jennings Ripley
Scott Posey Warrick Rush Washington
Jasper Fulton Jay Dearborn Blackford
Greene White Tipton Randolph Vermillion
Sullivan Orange Starke Newton Fountain
Harrison Carroll LaGrange Pulaski Martin
Franklin Spencer Pike Parke Owen
Benton Ohio Switzerland Warren Union
Brown Crawford