What is the air quality in Marshalltown today?

The current Air Quality Index (AQI) in Marshalltown is 33 (Good). PM2.5 concentration is 7.87 µg/m³.

What is the temperature in Marshalltown right now?

The current temperature in Marshalltown is 25.1°C (feels like 25.1°C). Humidity is 51.8% and wind speed is 24.0 km/h.

Is it safe to go outside in Marshalltown?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 6.9 (High).

Air Quality in Marshalltown, United States

Partly Cloudy

25.1°C · 51.8% humidity

25.1°

Feels 25.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

25 6pm

33 9pm

30 12am

26 3am

25 6am

24 9am

24 12pm

24 3pm

View AQI history for Marshalltown →

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.

51.8%

Humidity

24.0 km/h

Wind N

1019.2 hPa

Pressure

6.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.87 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Marshalltown?

Temperature & Precipitation

PM2.57.87 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX6.9

High

What is the 7-day forecast for Marshalltown?

08-03

27.2° 16.0°

08-04

30.3° 14.6°

08-05

28.9° 12.1°

1.31 mm

08-06

38.9° 18.4°

0.94 mm

08-07

28.3° 15.2°

0.5 mm

08-08

35.4° 16.8°

1.5 mm

08-09

34.6° 23.3°

0.19 mm

Both models agree Avg diff: 4.4°C

What cities are near Marshalltown?

48 Ames 27 Altoona 30 Cedar Falls 30 Waterloo 31 Ankeny 27 Des Moines 27 Johnston 31 Urbandale 31 Clive 31 West Des Moines

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T02:06 UTC.