Air quality in United States
Air quality in Minnesota today
Updated
Good: average US AQI 27 across 11 cities in Minnesota Worst now: Austin, MN (38); cleanest: Mankato (20).
Live US AQI, PM2.5 and ozone for cities across Minnesota, compared with the United States average.
- Average US AQI
- 27 Good
- United States average
- 49 747 cities
- Most polluted now
- Austin, MN AQI 38
- Cleanest now
- Mankato AQI 20
- Cities above 100
- 0
Air quality in Minnesota today
Right now the modelled air quality in Minnesota averages a US AQI of 27 (Good) across the 11 cities we track. By category: 11 Good (of 11).
That is 22 points cleaner than the United States average of 49, ranking 4 of 51 states from cleanest to most polluted.
Austin, MN has the worst air at 38 (PM2.5 6.5 µg/m³), and Mankato the cleanest at 20. No tracked city is above 100, so no group needs to change plans.
Minnesota cities by AQI (most polluted first)
| City | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Austin | 38 | Good | 6.5 | 7 | 62 |
| Rochester | 35 | Good | 3.3 | 4 | 65 |
| Duluth | 29 | Good | 3.6 | 5 | 74 |
| Minneapolis | 27 | Good | 5.3 | 6 | 48 |
| Saint Paul | 27 | Good | 5.3 | 6 | 48 |
| Richfield | 27 | Good | 5.3 | 6 | 48 |
| Farmington | 27 | Good | 5.3 | 6 | 48 |
| Hastings | 22 | Good | 2.4 | 3 | 60 |
| Plymouth | 20 | Good | 2.5 | 3 | 64 |
| Minnetonka | 20 | Good | 2.5 | 3 | 64 |
| Mankato | 20 | Good | 3.4 | 4 | 54 |
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.
Cities in Minnesota
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Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS).