5 day forecast
The table below shows a summary of the air pollution forecast for up to 5 days ahead. Air pollution forecasts are produced by the Met Office and you can find more detailed forecast information for England on the Defra UK-AIR website.
| Local Authority | Tue 18th Aug | Wed 19th Aug | Thu 20th Aug | Fri 21st Aug | Sat 22nd Aug |
|---|---|---|---|---|---|
| Hillingdon |
Low
3
|
Low
3
|
Low
3
|
Low
3
|
update soon
|
| Hounslow |
Low
3
|
Low
3
|
Low
3
|
Low
3
|
update soon
|
| Slough |
Low
3
|
Low
3
|
Low
3
|
Low
3
|
update soon
|
| Spelthorne |
Low
3
|
Low
3
|
Low
3
|
Low
3
|
update soon
|
Last updated 18/08/2026 06:00
| Daily Air Quality Index (More Info) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Low | Medium | High | Very High | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |