Fort Wayne Air Quality in October

Across 2019–2025, Fort Wayne's October air quality had a median AQI of 41 (Good) over 217 monitored days in the Fort Wayne, IN area. 0.0% of October days (0 of 217) reached Unhealthy for Sensitive Groups or worse, and fine particulate matter (PM2.5) set the daily AQI on 63.1% of days. The cleanest October on record here was 2025 (median AQI 34, 0 days above 100) and the worst was 2024 (median 52, 0 days above 100, peak AQI 66).

41
Median AQI
Good
0.0%
Days above AQI 100
0 of 217 days
58
90th percentile AQI
worst 1 day in 10
84
Peak AQI
Moderate
PM2.5
Main pollutant
63.1% of days
66.4%
Good days
144 of 217
  • Good: 66.4%
  • Moderate: 33.6%
  • Unhealthy for Sensitive Groups: 0.0%
  • Unhealthy or worse: 0.0%

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QUICK ANSWER

How is the air in Fort Wayne in October?

Good on a typical day: median AQI 41 across 2019–2025, with 0.0% of October days above AQI 100. Fine particulate matter (PM2.5) is the main driver.

  • 66.4% of October days were Good (AQI 0–50), 33.6% Moderate (51–100).
  • 0 days of 217 reached AQI 101+; the October peak was 84.
  • Best October: 2025; worst October: 2024.

Frequently asked questions

What is the air quality like in Fort Wayne in October?

Across 2019–2025, the median daily AQI in Fort Wayne in October was 41 (Good). 66.4% of days were Good, 33.6% Moderate, and 0.0% reached Unhealthy for Sensitive Groups or worse, based on 217 monitored days in EPA's Air Quality System.

Is October a good time for outdoor exercise in Fort Wayne?

A typical October day in Fort Wayne sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.

Which pollutant causes Fort Wayne's October air quality problems?

Fine particulate matter (PM2.5) set the daily AQI on 63.1% of October days in Fort Wayne. The highest October AQI recorded in 2019–2025 was 84 (Moderate), in 2024.

Fort Wayne October air quality, year by year

Fort Wayne October air quality by year (Fort Wayne, IN, EPA AQS daily AQI)

YearDays monitoredMedian AQIDays above 100Peak AQIMain pollutant
20193151063PM2.5
20203138062PM2.5
20213140065PM2.5
20223143067PM2.5
20233141064PM2.5
2024worst3152066PM2.5
2025cleanest3134084O3

What October air means in Fort Wayne

A typical October day in Fort Wayne sits in the Good range (median AQI 41), so running, cycling and children's outdoor play are fine for everyone on most days; fewer than 1% of October days reached AQI 101+ in 2019–2025.

October's median AQI of 41 is below Fort Wayne's whole-year median of 49, making it one of the area's cleaner periods. Nationally, the median October AQI across every EPA metro area (102,872 metro-days, 2019–2025) is 38, so Fort Wayne runs in line with the national October norm; 0.0% of its October days topped AQI 100 versus 1.3% nationally (below average).

October is part of Fort Wayne's fall season (September, October, November); the fall page pools all three months.

Activity-specific thresholds: running, cycling, kids' sports.

Right now in Fort Wayne

The latest EPA AirNow observation puts Fort Wayne's AQI at 27 (PM2.5). The figures above are multi-year month statistics, not today's reading.

View current Fort Wayne air quality →

Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Fort Wayne, IN), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.