Warm Friday in Chiswick — 27°C with a UV index worth noting
4 July 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Friday is shaping up to be a pleasantly warm day in Chiswick, with the Met Office forecasting a high of 27°C and a low overnight of 18°C. Cloud cover will be partial rather than full, meaning there should be some good sunny spells through the afternoon. The chance of rain sits at just 3%, so outdoor plans look safe. Full forecast details are on the Met Office website.
The UV index is forecast at 8 — rated "very high" — which is worth bearing in mind if you are spending time outside for any length of time. Sunscreen and shade during the midday hours are sensible precautions, particularly for children.
For those heading to Chiswick House and Gardens, the riverside path at Strand-on-the-Green, or any of the local parks, conditions look ideal — just take the UV seriously. Temperatures should remain comfortable into the evening, making Friday night a good one for sitting outside.