Air Quality in Mason City, United States
Windy
5.9°C · 71.0% humidity
5.9°
Feels 0.2°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Mason City's air quality — share it
AQI Forecast
25
6am
25
24
37
9am
33
31
29
12pm
28
27
27
3pm
26
26
26
6pm
25
25
25
9pm
25
25
25
12am
25
25
25
3am
25
25
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. Current PM2.5 concentration in Mason City is 1.8× the WHO annual guideline of 5 µg/m³.
71.0%
Humidity
43.6 km/h
Wind E
1034.1 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
8.85 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Mason City?
Temperature & Precipitation
PM2.58.85 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
What is the 7-day forecast for Mason City?
05-29
29.1° 5.9°
05-30
22.5° 14.6°
3.38 mm
05-31
29.4° 12.1°
0.19 mm
06-01
26.2° 15.7°
4.37 mm
06-02
22.6° 15.4°
1.0 mm
06-03
32.4° 21.7°
2.12 mm
06-04
24.7° 14.0°
0.13 mm
Both models agree
Avg diff: 4.7°C
What cities are near Mason City?
Get AQI alerts for Mason City
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T14:50 UTC.