Another hot day in Chiswick — 30°C forecast with a very high UV index
11 July 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Saturday is shaping up to be another scorcher in Chiswick, with the Met Office forecasting a high of 30°C, a low of 18°C overnight, and just a 4% chance of rain. The UV index is 9, which is rated very high — meaning unprotected skin can burn quickly, even in the shade during peak hours. Full forecast details are on the Met Office website.
For residents heading outdoors — whether to Chiswick House and Gardens, the river towpath or one of the local parks — sun cream with at least SPF 30 is recommended, and it is worth staying hydrated and seeking shade between roughly 11am and 3pm, when UV levels will be at their peak.
The forecast comes alongside significant transport disruption this weekend, with the District Line closed between Turnham Green and Ealing Broadway and the Piccadilly Line suspended west of Hammersmith. If the heat encourages a day trip, factor in extra travel time and consider cycling or walking local routes instead.