AQI PM2.5 PM10 CO SO2 NO2 O3

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Watertown Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in South Dakota

Last Updated: 2025-06-03 02:56:01 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 69 µg/m³

PM2.5 : 26 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

21 °C

Last Updated: 2025-06-03 02:56:01 PM (Local Time)

Map

Watertown

Major Air Pollutants
Watertown

Particulate Matter(PM2.5)

26µg/m³

Particulate Matter(PM10)

69µg/m³

Carbon Monoxide(CO)

132ppb

Sulfur Dioxide(SO2)

1ppb

Nitrogen Dioxide(NO2)

4ppb

Ozone(O3)

30ppb

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AQI Graph

Historical Air Quality Data
Watertown

24 Hours

AQI

Watertown

Want air quality data?

AQI Trends - Annual Air Quality Changes
Watertown, South Dakota, United States

AQI

Year

AQI

Annual AQI Trends

2020

37AQI

2021

40AQI

Rise

2022

36AQI

-10%

Fall

2023

42AQI

17%

Rise

2024

34AQI

-19%

Fall

2025

32AQI

-6%

Fall

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

-2%

Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedJune, 202592AQI

Least PollutedNovember, 202422AQI

* This data analysis is from year 2020 - 2025

Watertown's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

3rd Avenue Southwest

Moderate

Watertown

Moderate

United States's Metro Cities
Air Quality Index

East Chicago

Los Angeles

Minneapolis

113

Nashville

New Orleans

New York City

San Francisco

Port Washington

Air Quality Calendar 2025
Watertown

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 42	2 Jan 42	3 Jan 21	4 Jan 19
5 Jan 21	6 Jan 25	7 Jan 25	8 Jan 31	9 Jan 31	10 Jan 21	11 Jan 21
12 Jan 24	13 Jan 23	14 Jan 25	15 Jan 21	16 Jan 36	17 Jan 127	18 Jan 139
19 Jan 120	20 Jan 127	21 Jan 136	22 Jan 96	23 Jan 25	24 Jan 23	25 Jan 23
26 Jan 22	27 Jan 22	28 Jan 23	29 Jan 23	30 Jan 24	31 Jan 31	1 Feb 32

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 22	27 Jan 22	28 Jan 23	29 Jan 23	30 Jan 24	31 Jan 31	1 Feb 32
2 Feb 31	3 Feb 23	4 Feb 22	5 Feb 31	6 Feb 27	7 Feb 25	8 Feb 29
9 Feb 30	10 Feb 36	11 Feb 26	12 Feb 35	13 Feb 36	14 Feb 51	15 Feb 38
16 Feb 25	17 Feb 21	18 Feb 20	19 Feb 20	20 Feb 24	21 Feb 31	22 Feb 35
23 Feb 27	24 Feb 21	25 Feb 21	26 Feb 25	27 Feb 23	28 Feb 24	1 Mar 25

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 27	24 Feb 21	25 Feb 21	26 Feb 25	27 Feb 23	28 Feb 24	1 Mar 25
2 Mar 29	3 Mar 42	4 Mar 34	5 Mar 25	6 Mar 22	7 Mar 26	8 Mar 25
9 Mar 23	10 Mar 24	11 Mar 23	12 Mar 27	13 Mar 42	14 Mar 55	15 Mar 22
16 Mar 17	17 Mar 22	18 Mar 25	19 Mar 24	20 Mar 33	21 Mar 20	22 Mar 25
23 Mar 25	24 Mar 26	25 Mar 36	26 Mar 35	27 Mar 28	28 Mar 42	29 Mar 21
30 Mar 22	31 Mar 23	1 Apr 23	2 Apr 22	3 Apr 23	4 Apr 27	5 Apr 26

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 22	31 Mar 23	1 Apr 23	2 Apr 22	3 Apr 23	4 Apr 27	5 Apr 26
6 Apr 25	7 Apr 20	8 Apr 24	9 Apr 35	10 Apr 30	11 Apr 34	12 Apr 54
13 Apr 43	14 Apr 24	15 Apr 20	16 Apr 33	17 Apr 43	18 Apr 26	19 Apr 33
20 Apr 33	21 Apr 36	22 Apr 20	23 Apr 19	24 Apr 28	25 Apr 27	26 Apr 30
27 Apr 25	28 Apr 26	29 Apr 25	30 Apr 29	1 May 21	2 May 24	3 May 24

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 25	28 Apr 26	29 Apr 25	30 Apr 29	1 May 21	2 May 24	3 May 24
4 May 34	5 May 37	6 May 36	7 May 29	8 May 37	9 May 41	10 May 35
11 May 47	12 May 44	13 May 48	14 May 43	15 May 26	16 May 23	17 May 22
18 May 18	19 May 16	20 May 13	21 May 14	22 May 13	23 May 14	24 May 14
25 May 16	26 May 19	27 May 20	28 May 25	29 May 28	30 May 30	31 May 71

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 92	2 Jun -	3 Jun -	4 Jun -	5 Jun -	6 Jun -	7 Jun -
8 Jun -	9 Jun -	10 Jun -	11 Jun -	12 Jun -	13 Jun -	14 Jun -
15 Jun -	16 Jun -	17 Jun -	18 Jun -	19 Jun -	20 Jun -	21 Jun -
22 Jun -	23 Jun -	24 Jun -	25 Jun -	26 Jun -	27 Jun -	28 Jun -
29 Jun -	30 Jun -	1 Jul -	2 Jul -	3 Jul -	4 Jul -	5 Jul -

Health Advice For People Living In
Watertown

0Cigarettes per day

Weekly 0 Cigarettes

Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Solutions for Current AQI

Air PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Watertown

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

Limit outdoor activities when AQI is poor.
Clean indoor air with an air purifier to reduce exposure.
Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

Exercise outdoors without a mask.
Stay in smoky areas with strong fumes.

Most Polluted Cities 2025
United States

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025

World's Most PollutedCity Rankings (2024)

World's Most PollutedCountry Rankings(2024)

RankCityAQIAQI Status

Standard Value

Blaine, United States

Poor

10xabove Standard

Maplewood, United States

Poor

9xabove Standard

Lakeville, United States

Poor

9xabove Standard

Saint Paul, United States

Poor

9xabove Standard

Apple Valley, United States

Poor

9xabove Standard

Marine on Saint Croix, United States

Poor

8xabove Standard

Shakopee, United States

Poor

8xabove Standard

Eau Claire, United States

Poor

8xabove Standard

Minneapolis, United States

Poor

8xabove Standard

10.

Dennison, United States

Poor

7xabove Standard

Last Updated: 03 Jun 2025, 09:50 PM

AQI City Rankings

Air Quality Solutions For Watertown
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

air quality solutions for offices for Watertown

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Watertown

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Watertown

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Watertown

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Watertown's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Mobile App

Empower Your Decisions with Reliable Data

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Air Quality FAQs
at Watertown

Frequently Asked Questions About Air Quality

What is the current AQI level in Watertown?

The current real-time AQI level in Watertown is 82 (Moderate). This was last updated 2025-06-03 02:56:01 PM (Local Time).

When was the best AQI level in Watertown in the last 24 hours?

The best AQI level was 48 (Good) at 5:09 PM, Jun 2, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Watertown in the last 24 hours?

The worst AQI level was 69 (Moderate) at 8:09 AM (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Watertown during last 24 hours?

The AQI levels in Watertown have been fluctuating throughout the last 24 hours. The levels have increased by highest 69 at 8:09 AM (Local Time), lowest 48 at 5:09 PM, Jun 2, 2025 (Local Time).

What actions are recommended as per the current AQI level in Watertown?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.