Air Quality in Mason City, United States
Windy
26.5°C · 35.7% humidity
26.5°
Feels 26.5°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Mason City's air quality — share it
AQI Forecast
25
6pm
25
25
41
9pm
36
33
31
12am
28
27
26
3am
27
26
26
6am
26
24
24
9am
24
24
24
12pm
24
24
24
3pm
24
24
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.
35.7%
Humidity
43.7 km/h
Wind ENE
1019.0 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.75 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Mason City?
Temperature & Precipitation
PM2.59.75 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX6.9
High
What is the 7-day forecast for Mason City?
08-03
28.7° 15.1°
08-04
27.9° 10.9°
0.44 mm
08-05
29.8° 10.8°
08-06
39.3° 15.7°
0.31 mm
08-07
28.2° 17.6°
0.06 mm
08-08
36.2° 15.1°
12.06 mm
08-09
35.1° 23.2°
1.0 mm
Both models agree
Avg diff: 4.5°C
What cities are near Mason City?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:10 UTC.