The hot spell peaks at 32°C in Chiswick today — sunny all day
3 August 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Sunday's 28°C feels like a gentle warm-up now: the Met Office is forecasting a high of 32°C for Chiswick today, Sunday 3 August, with sunshine expected throughout the day and a very low chance of rain at just 4 per cent.
The UV index is 8 — firmly in the "very high" category — so sun cream, a hat and plenty of water are genuinely important rather than optional today. Even a short time in direct sunlight at this UV level can cause burning, particularly for children.
The overnight low sits at 21°C, which means it will remain warm and potentially stuffy indoors this evening. Those who find sleeping in the heat difficult may want to keep blinds closed during the day to limit heat build-up.
Chiswick House and Gardens, the Thames Path and the green spaces around Grove Park are all good places to enjoy the sunshine — though the riverside path can be very exposed to direct sun at midday, so shade and hydration are worth planning ahead.
The full forecast is available via the Met Office.