What is the air quality in Mason City today?

The current Air Quality Index (AQI) in Mason City is 26 (Good). PM2.5 concentration is 6.25 µg/m³.

What is the temperature in Mason City right now?

The current temperature in Mason City is 18.3°C (feels like 18.3°C). Humidity is 41.4% and wind speed is 38.1 km/h.

Is it safe to go outside in Mason City?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 14.9 (Extreme).

Air Quality in Mason City, United States

Clear

18.3°C · 41.4% humidity

18.3°

Feels 18.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

25 11am

26 2pm

25 5pm

25 8pm

25 11pm

25 2am

25 5am

27 8am

View AQI history for Mason City →

Mason City's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

41.4%

Humidity

38.1 km/h

Wind NNW

1021.6 hPa

Pressure

14.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.25 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Mason City?

Temperature & Precipitation

PM2.56.25 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX14.9

Extreme

Both models agree Avg diff: 5.2°C

What cities are near Mason City?

37 Albert Lea 41 Austin 30 Cedar Falls 30 Waterloo 38 Owatonna 26 Fort Dodge 38 Rochester 26 Marshalltown 38 Faribault 27 Ames

Get AQI alerts for Mason City

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T19:27 UTC.