Millston, Wisconsin Air Quality
Millston has a median AQI of 29, earning an air quality grade of A+ — excellent air quality that ranks better than 90% of US cities. Air quality has remained relatively stable over the past decade. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2025, Millston recorded 114 good air quality days (76% of monitored days) and 2 unhealthy days.
Population: 114 • County: Jackson
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Quick Facts
| Current AQI | 18 — Good |
| Air Quality Grade | A+ |
| Median AQI (2025) | 29 |
| vs. U.S. Cities | Better than 90% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 2 |
| 10-Year Trend | → Stable |
| Data Source | EPA AirNow |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
2025 Air Quality Summary
Primary Pollutant Days (2025)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Millston Air Quality
What is the air quality in Millston today?
The current AQI in Millston is 18, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Millston getting better or worse?
Air quality in Millston has remained relatively stable over the past decade, with a median AQI of around 29.
What is the most common air pollutant in Millston?
PM2.5 is the primary air pollutant in Millston, responsible for the most air quality-impacted days in 2025. Particulate matter can originate from vehicle exhaust, wildfires, and industrial emissions.
How many unhealthy air days does Millston have per year?
In 2025, Millston had 2 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 114 good days and 34 moderate days out of 150 days monitored.
What air quality grade does Millston receive?
Millston receives an air quality grade of A+, placing it better than 90% of US cities. This grade is based on a median AQI of 29 for 2025, derived from EPA monitoring data.
Air Quality Grade
Better than 90% of US cities
Nearby Cities
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National Rankings
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Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Millston
Based on your area's air quality (median AQI: 29), we recommend these air purifiers to help protect your health indoors.
RabbitAir MinusA2
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Other Great Options
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
Dyson Pure Cool TP04
Premium all-in-one air purifier and fan with advanced features.
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