Storms possible in Barnes tomorrow — a wet end to the week
20 August 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Friday 21 August looks set to be a notably different day from the recent spell of warm weather, with the Met Office flagging a storm risk for Barnes alongside a 64 per cent chance of rain.
Expect a cloudy day with a high of 22°C and an overnight low of 14°C — considerably fresher than the temperatures Barnes residents have seen over the past week. The UV index sits at 6, so it is worth keeping sun protection handy during any brighter spells, but the more pressing concern is the storm alert.
If you have outdoor plans for Friday — whether that is cycling, gardening, or a trip to the wetlands or the riverside — it is worth keeping a close eye on the forecast and having a backup plan ready. The Met Office recommends securing any loose garden furniture or outdoor items ahead of potential gusty conditions.
Saturday's outlook is not yet confirmed, so those planning a weekend trip would be wise to check the latest forecast before setting out. The Met Office site is updated regularly and gives hour-by-hour detail for the SW13 area. Full forecast via the Met Office.