Worst air pollution Welshpool, today and tomorrow
Today (16 July): Air quality in Welshpool is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (NO2: 28.6/100).
Tomorrow (17 July 2026): Air quality in Welshpool is fair. PM2.5 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 38.1/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
The A470 generates consistent traffic-related NO₂ and PM2.5, particularly during peak commuting hours. Welshpool sits within Powys, and its air quality profile is driven mainly by road traffic and the density of the centre. The area's changeable Atlantic weather do most of the work keeping things in check, more so than any local policy or infrastructure change.
Today - 16 July | Pollution peaks at 05:00
AQI:
Fair
28.6/100
PM2.5 (fine particles):
Good
18.2/100
PM10 (coarse particles):
Good
6.3/100
NO2 (nitrogen dioxide):
Fair
28.6/100
O3 (ozone):
Fair
28.5/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.1/100
PM1 (ultrafine particles):
Good
14.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Fair
38.1/100
PM2.5 (fine particles):
Fair
24.8/100
PM10 (coarse particles):
Good
9.0/100
NO2 (nitrogen dioxide):
Fair
38.1/100
O3 (ozone):
Fair
31.9/100
SO2 (sulfur dioxide):
Good
13.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Fair
20.8/100
Pollen forecast in Welshpool
View pollen forecastFrequently Asked Questions
Is air quality bad in Welshpool right now?
On 16 July 2026, overall air quality in Welshpool is fair. AQI is the main air quality indicator at 28.6/100. Pollution peaks around 5:00 AM (NO2: 28.6/100).
Will air quality be worse tomorrow in Welshpool?
On 17 July 2026, air quality conditions in Welshpool will be similar to today, with AQI forecast at fair at 38.1/100. Pollution peaks around 6:00 AM (NO2: 38.1/100).
When is air pollution at its worst in Welshpool?
Welshpool's air quality follows a familiar seasonal pattern most UK towns share. Winter tends to be worst, with wood burning, home heating, and still, cold air trapping traffic fumes from the A470 closer to ground level. In summer, ozone can build up on sunny afternoons, though windier, warmer weather usually helps clear traffic-related pollution faster than in winter. Spring and autumn are typically the easiest months, air-quality-wise, for most residents.
Are air quality levels in Welshpool based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Want to see air quality forecasts for other cities in United Kingdom?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app