Thunder Bay, Ontario Air Quality.

Cur
Past 5 days data
MinMax
PM2.5
25
pm25
5
61
O3
23
o3
3
35
NO2
9
no2
2
33
Temp.
5
t
-13
6
Humidity
75
h
45
100
Wind
2
w
0
9
SHARE
Share: Thunder Bay, Ontario, Canada Air Quality Index
25
(Good)
Air Quality Data source
Weather Information
Current conditions for Thunder Bay, Ontario on measured on Wednesday 16:00:
5°C
Humidity: 75%
Pressure:: -mb
Air Quality Forecast
Wed 26th
1°C
-8°C
Thu 27th
0°C
-5°C
Fri 28th
-6°C
-14°C
Sat 1st
-9°C
-21°C
Sun 2nd
-6°C
-21°C
Mon 3rd
-6°C
-15°C
Wednesday 26thThursday 27thFriday 28thSaturday 1stSunday 2ndMonday 3
0369121518210369121518210369121518210369121518210369121518210369121518
PM2.5
111111123446555522471098986655665544433321222224















































-4°-6°-7°-7°-7°-2°-2°-1°-1°-5°-4°-3°-4°-8°-9°-10°-8°-7°-11°-10°-13°-15°-17°-18°-20°-21°-15°-10°-9°-15°-16°-19°-21°-21°-11°-7°-6°-15°-15°-13°-13°-12°-6°


7:47 ~ 18:35


7:45 ~ 18:37


7:43 ~ 18:39


7:41 ~ 18:40


7:39 ~ 18:42


7:37 ~ 18:43
Forecast plotted using timezone -05:00
Thunder Bay, Ontario Air Pollution Map
Nearest cities:
25
Thunder Bay, Ontario, Canada
Today at 9:00 PM - an hour ago
11
Grand Portage, Minnesota, USA
Today at 9:00 PM - an hour ago
7
Ely, Minnesota, USA
Yesterday at 6:00 AM - 2 days ago
38
Bad River, Wisconsin, USA
Today at 8:00 PM - 2 hours ago
29
Virginia, Minnesota, USA
Today at 9:00 PM - an hour ago
38
Duluth-WDSE, Minnesota, USA
Today at 9:00 PM - an hour ago
41
West Duluth, Minnesota, USA
Today at 9:00 PM - an hour ago
36
Fond du Lac, Minnesota, USA
Today at 9:00 PM - an hour ago
39
Potawatomi, Wisconsin, USA
Today at 9:00 PM - an hour ago
25
Seney, Michigan, USA
Today at 9:00 PM - an hour ago
37
Perkinstown, Wisconsin, USA
Today at 8:00 PM - 2 hours ago
33
Brainerd, Minnesota, USA
Today at 9:00 PM - an hour ago
20
Eau Claire Dot, Wisconsin, USA
Today at 9:00 PM - an hour ago
49
Green Bay E High, Wisconsin, USA
Today at 9:00 PM - an hour ago
54
Appleton Aal, Wisconsin, USA
Today at 9:00 PM - an hour ago
35
Blaine, Minnesota, USA
Today at 9:00 PM - an hour ago
15
St. Paul-Harding H.S., Minnesota, USA
Today at 9:00 PM - an hour ago
8
Marshall Terrace, Minneapolis - Bottineau, Minnesota, USA
Today at 9:00 PM - an hour ago
Options
Auto locate the nearest city
Choose another city AQI
Load most recent AQI data
View all cities AQI on a map
Open normal webpage (instead of the mobile webapp version)
Download the Smartphone application
About this app and widget
Contact the World Air Quality Index project team
Frequently Asked Questions
Settings
-Remember the selected city
Temperature unit: Celcius
Language Settings:
🇨🇳
简体中文
🇯🇵
日本
🇪🇸
español
🇰🇷
한국의
🇷🇺
русский
🇭🇰
繁體中文
🇫🇷
Francais
🇵🇱
Polski
🇩🇪
Deutsch
🇧🇷
Português
🇻🇳
Tiếng Việt
🇮🇹
Italiano
🇮🇩
bahasa Indonesia
🇳🇱
Nederlands
🇮🇷
فارسی
🇹🇭
ภาษาไทย
🇭🇺
Magyar
🇬🇷
Ελληνικά
🇷🇴
Română
🇧🇬
български
🇵🇰
اردو
🇮🇳
हिंदी
🇦🇪
العربية
🇷🇸
Српски
🇧🇩
বাংলা
🇧🇦
босански
🇭🇷
hrvatski
🇹🇷
Türkçe
🇺🇦
українська
🇨🇿
čeština
🇧🇾
беларускі
🇰🇭
ខ្មែរ
🇱🇦
ລາວ
About the Air Quality and Pollution Measurement:
About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

This page has been generated on Thursday, Feb 27th 2025, 06:09 am CST
-
World Air Quality Index project

Thunder Bay, Ontario Air Quality.

Share: “Thunder Bay, Ontario, Canada Air Quality is Good - on Wednesday, Feb 26th 2025, 16:00 pm




Auto locate the nearest city

Please wait while querying your location...

AQI City Selection


Looking for another city?

or let us find your nearest air quality monitoring station