Air Quality in Marshalltown, United States
Windy
18.4°C · 90.5% humidity
18.4°
Feels 18.4°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Marshalltown's air quality — share it
AQI Forecast
25
5pm
25
25
26
8pm
25
24
24
11pm
24
24
24
2am
24
25
25
5am
25
25
27
8am
27
27
27
11am
27
25
25
2pm
25
25
Marshalltown's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
90.5%
Humidity
87.2 km/h
Wind E
1015.3 hPa
Pressure
1.4
UV Low
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 Marshalltown?
Temperature & Precipitation
PM2.56.25 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
What is the 7-day forecast for Marshalltown?
05-30
22.3° 13.2°
17.75 mm
05-31
28.8° 11.6°
06-01
26.8° 16.2°
10.0 mm
06-02
21.9° 15.8°
1.13 mm
06-03
31.2° 22.4°
0.69 mm
06-04
24.4° 14.8°
0.38 mm
06-05
24.5° 13.5°
0.13 mm
Both models agree
Avg diff: 6.0°C
What cities are near Marshalltown?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T01:03 UTC.