Air Quality in Marshalltown, United States
Partly Cloudy
16.2°C · 55.1% humidity
16.2°
Feels 16.2°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Marshalltown's air quality — share it
AQI Forecast
25
4pm
25
25
26
7pm
25
25
25
10pm
25
25
25
1am
25
25
25
4am
25
25
25
7am
24
24
25
10am
25
25
25
1pm
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. Current PM2.5 concentration in Marshalltown is 1.2× the WHO annual guideline of 5 µg/m³.
55.1%
Humidity
33.2 km/h
Wind ENE
1027.6 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?
05-29
30.1° 5.3°
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
Both models agree
Avg diff: 5.8°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 2026-05-29T00:13 UTC.