The highest AQ index in Indiana (as of 13:00 EST) is currently the Fort Wayne area. Particle Pollution (PM2.5) is measuring at 89 (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 Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Section 3: Statewide Ozone & Fine Particulate Matter Forecast Fine Particulate Matter (PM2.5) Latest surface analysis as of around 12Z this morning depicts a cold frontal boundary to the north of the state. Elsewhere below it, high pressure is building in from the Mid-Atlantic. Expect dry conditions today but partly cloudy skies. Highs will range from the middle 40’s to lower 50’s. Some patchy fog will develop later tonight with the help of fog advecting in from the southwest by a warm front. Look for mostly cloudy skies with a chance for drizzle on Tuesday, with the possibility of some sprinkles/drizzle even before 7am. Highs will range from the upper 40’s north to the upper 50’s south. The pressure gradient will be somewhat strong as the surface low pressure traverses east across the southern Great Lakes during the day, and gusts of 25 to 30 mph are possible. By midweek, Wednesday into Thursday, the area should be fairly well cleaned out after the gusty drizzle event, so for Wednesday, expecting mostly sunny skies with highs in the upper 40’s to middle 50’s. South winds will be light around 5 mph. The next best chances for rain come toward the end of the week on Thursday/Friday with rain and possibly a thunderstorm or two. Winds will be stratiform gusting to around 20 to 25 mph, but gust much higher in any thunderstorm. Mixing heights this afternoon will be around 1800 ft and then 2800 ft for the rest of the period. The Canadian model wants to go with Good for the forecast period which am not biting on due to persistence. The 06Z NOAA Model is going with Moderate’s straight across the board which agrees with persistence. After Wednesday, the winds pick up from the south at 10 mph gusting to 20 to 25 mph and the area will get well cleaned out with any rain and/or thunderstorms, so will only go Good on Thursday and Friday of this period. Leaning toward the NOAA model which has verified better.
| 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 5 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.