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Lewiston Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-08-24 05:25:30 PM (Local Time)

location image
Live AQI
55(AQI-US)
Air Quality is
Moderate
pm10 :  21 µg/m³
PM2.5 :  11 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Lewiston
sunny

34 °C

Sunny
Humidity
Humidity17 %

Wind Speed
Wind Speed5 km/h

UV Index
UV Index4
Last Updated: 2025-08-24 05:25:30 PM (Local Time)


Map

Lewiston

Major Air Pollutants

Lewiston

AQI Graph

Historical Air Quality Data

Lewiston

Lewiston
AQI
.
23-08-2025Time24-08-2025
52
Min.at 6:09 AM on 24th Aug
60
Max.at 2:09 AM on 24th Aug

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Lewiston, Idaho, United States

Year
.
AQI


Annual AQI Trends

2020
34AQI
2021
32AQI
-6%
Fall
2022
28AQI
-12%
Fall
2023
29AQI
4%
Rise
2024
30AQI
3%
Rise
2025
25AQI
-17%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
-6%
Fall (Improved AQI)

Most & Least Polluted Months

Most PollutedSeptember, 202084AQI

Least PollutedMay, 202213AQI

* This data analysis is from year 2020 - 2025

Lewiston's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
53
10
20
18
78
Moderate
58
13
20
16
69
Moderate
59
13
23
18
63
Moderate
53
10
19
18
77
Moderate
54
10
20
18
77
Moderate
53
10
20
18
78
Moderate
55
11
25
18
65
Moderate
57
12
19
18
77

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Lewiston

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

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Lewiston

  • asthma due to air pollution in LewistonAsthma
  • heart due to air pollution in LewistonHeart Issues
  • allergy due to air pollution in LewistonAllergies
  • sinus due to air pollution in LewistonSinus
  • flu due to air pollution in LewistonCold/Flu
  • copd due to air pollution in LewistonChronic (COPD)
asthma due to air pollution in Lewiston

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild 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.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

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

Lewiston's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
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WidgetsWidgets
aqi air quality app for Lewiston
Mobile App

Empower Your Decisions with Reliable Data

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

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


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Lewiston

Frequently Asked Questions About Air Quality

What is the current AQI level in Lewiston?

The current real-time AQI level in Lewiston is 55 (Moderate). This was last updated 2025-08-24 05:25:30 PM (Local Time).

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

The best AQI level was 52 (Moderate) at 6:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 60 (Moderate) at 2:09 AM (Local Time) during the last 24 hours.

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

The AQI levels in Lewiston have been fluctuating throughout the last 24 hours. The levels have increased by highest 60 at 2:09 AM (Local Time), lowest 52 at 6:09 AM (Local Time).

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

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