Air quality in Waltham

Air quality index (AQI) and PM2.5 air pollution in Waltham

Last update at (local time)

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Pollen

What is the pollen count in Waltham today?

IndexNone
Tree pollenNone
Grass pollenNone
Weed pollenNone
Source: tomorrow.io
See pollen forecast

Weather

What is the current weather in Waltham?

Weather icon
WeatherBroken clouds
Temperature68°F
Humidity81%
Wind11.5 mp/h
Pressure30.1 Hg

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1The national flag of International Sisters, Oregon

185

2The national flag of International Redmond, Oregon

170

3The national flag of International Sunriver, Oregon

167

4The national flag of International Bend, Oregon

163

5The national flag of International Nampa, Idaho

157

6The national flag of International Republic, Washington

157

7The national flag of International Yakima, Washington

155

8The national flag of International Deschutes River Woods, Oregon

154

9The national flag of International La Pine, Oregon

151

10The national flag of International Prineville, Oregon

151

(local time)

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Real-time Waltham air quality ranking

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US AQI

46*

live AQI index
Good

Human face indicating AQI level

Overview

What is the current air quality in Waltham?

Air pollution levelAir quality indexMain pollutant
Good 46* US AQIPM2.5
PollutantsConcentration
PM2.5
8.3*µg/m³
!

PM2.5

x1.7

PM2.5 concentration in Waltham is currently 1.7 times the WHO annual air quality guideline value

Health Recommendations

What is the current air quality in Waltham?

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Forecast

Waltham air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Today

Good 46 AQI US

Human face indicating AQI level
Weather icon 80%
73.4° 64.4°
Wind rotating 119 degree 4.5 mp/h
Thursday, Jul 25

Moderate 52 AQI US

Human face indicating AQI level
Weather icon 50%
84.2° 64.4°
Wind rotating 282 degree 8.9 mp/h
Friday, Jul 26

Moderate 58 AQI US

Human face indicating AQI level
Weather icon
82.4° 60.8°
Wind rotating 347 degree 8.9 mp/h
Saturday, Jul 27

Moderate 59 AQI US

Human face indicating AQI level
Weather icon
86° 60.8°
Wind rotating 102 degree 6.7 mp/h
Sunday, Jul 28

Moderate 57 AQI US

Human face indicating AQI level
Weather icon
89.6° 62.6°
Wind rotating 115 degree 8.9 mp/h
Monday, Jul 29

Moderate 65 AQI US

Human face indicating AQI level
Weather icon 30%
86° 62.6°
Wind rotating 102 degree 6.7 mp/h
Tuesday, Jul 30

Moderate 65 AQI US

Human face indicating AQI level
Weather icon 40%
89.6° 66.2°
Wind rotating 210 degree 13.4 mp/h

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How to best protect from air pollution?

Reduce your air pollution exposure in Waltham

Where is the cleanest air quality in Waltham?

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