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 | Wed 29th Jul | Thu 30th Jul | Fri 31st Jul | Sat 1st Aug | Sun 2nd Aug |
|---|---|---|---|---|---|
| Hillingdon |
Moderate
4
|
Low
3
|
Low
3
|
Low
3
|
Moderate
4
|
| Hounslow |
Moderate
4
|
Low
3
|
Low
3
|
Low
3
|
Moderate
4
|
| Slough |
Low
3
|
Low
3
|
Low
3
|
Low
3
|
Moderate
4
|
| Spelthorne |
Moderate
4
|
Low
3
|
Low
3
|
Low
3
|
Moderate
4
|
Last updated 29/07/2026 06:00
| Daily Air Quality Index (More Info) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Low | Medium | High | Very High | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |