What is the air quality in Marshalltown today?

The current Air Quality Index (AQI) in Marshalltown is 42 (Good). PM2.5 concentration is 10.13 µg/m³.

What is the temperature in Marshalltown right now?

The current temperature in Marshalltown is 25.9°C (feels like 25.9°C). Humidity is 69.8% and wind speed is 32.6 km/h.

Is it safe to go outside in Marshalltown?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 19.9 (Extreme).

Air Quality in Marshalltown, United States

Partly Cloudy

25.9°C · 69.8% humidity

25.9°

Feels 25.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 12pm

42 3pm

31 6pm

26 9pm

25 12am

24 3am

25 6am

24 9am

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.

69.8%

Humidity

32.6 km/h

Wind SE

1015.0 hPa

Pressure

19.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.13 µg/m³

PM10

20.55 µg/m³

050100150200300500

What is the weather forecast for Marshalltown?

Temperature & Precipitation

PM2.510.13 µg/m³ ✓ WHO

Good

PM1020.55 µg/m³

Good

UV INDEX19.9

Extreme

What is the 7-day forecast for Marshalltown?

07-21

25.9° 22.3°

0.25 mm

07-22

26.2° 19.2°

8.06 mm

07-23

22.6° 16.2°

4.94 mm

07-24

28.5° 16.1°

07-25

23.3° 17.9°

5.0 mm

07-26

24.2° 19.9°

2.06 mm

07-27

25.8° 18.8°

Both models agree Avg diff: 4.7°C

What cities are near Marshalltown?

43 Ames 38 Altoona 30 Cedar Falls 30 Waterloo 38 Ankeny 38 Des Moines 38 Johnston 38 Urbandale 38 Clive 38 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 2026-07-21T20:09 UTC.