Warm and cloudy in Chiswick today — highs of 27°C expected
22 July 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Tuesday brings a warm but overcast day to Chiswick, with the Met Office forecasting a high of 27°C and a low of 18°C overnight. There is very little chance of rain — just a 5% probability — so outdoor plans should be unaffected, even if the sunshine stays behind a veil of cloud for much of the day.
The UV index is forecast at 7, which sits in the high category. That is worth keeping in mind even on a cloudy day: UV radiation penetrates cloud cover, so sunscreen is still a sensible precaution for anyone spending extended time outside, particularly with children. Sunglasses and a hat are advisable if you are heading to one of Chiswick's parks or the river.
At 27°C with cloud cover, conditions are actually fairly comfortable for outdoor activities — cooler than last week's peak temperatures, without the intense direct sun. Chiswick House and Gardens, the riverside at Strand-on-the-Green, and the open spaces around Gunnersbury Park should all be pleasant this afternoon. Full forecast details are available from the Met Office.
The warm spell looks set to continue, so make the most of the dry conditions while they last.