The highest AQ index in Indiana (as of 18:00 EDT) is currently the Muncie area. Particle Pollution (PM2.5) is measuring at 42 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Evansville area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Southern Regions: Ozone was good for Fri-Sun this past period, and PM2.5 was a mixture of Good/Moderate on Friday and then Moderate the rest of the period. As of 12Z this morning widespread showers and storms are moving across southern Indiana. This activity will slowly drop south out of southern Indiana by later this afternoon as a cold front drops south of the state. Temperatures the next two days will be much cooler in the mid 80's. Dew points will start off in the mid 70's today and drop into the upper 60's by tomorrow (Tuesday). Northwest winds are expected today around 10 mph with mixing heights this afternoon of 3600 ft (and also tomorrow afternoon of 4300 ft.) For tomorrow, expect sunny skies with winds out of the southwest around 5 mph or less. The next best chance for rain will come Wednesday. Looking at likely rain showers with chances of storms for Wednesday with highs in the mid to upper 80's and dew points in the lower 70's with mixing heights of 3000 ft. Precipitable water values are accounting for about half an inch of rain possible with higher amounts in thunderstorms. The Canadian model is predicting Good for today and also Good for tomorrow/Wednesday for Ozone. The 06Z BC NOAA model is predicting Good as well, for today and tomorrow/Wednesday and see no reason to stray from this guidance based on persistence and the forecast, and the fact that the area was somewhat cleaned out a bit. As for PM2.5, the NOAA model is predicting Moderate through Wednesday will falls in line with persistence. Also, this model has been performing as expected so will continue to lean toward it and go with Moderate through Wednesday.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 13 minutes ago
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.