Heavy rain expected today — 24°C with a 75% chance of showers
19 August 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
After a run of warm, mostly dry days, Wednesday brings a notable change for Richmond. The Met Office is forecasting heavy rain today, with a 75% chance of precipitation throughout the day and a high of 24°C — still mild, but considerably wetter than the recent spell. The overnight low is expected to drop to 15°C.
The UV index remains at 5 (moderate), so if there are any breaks in the cloud it is still worth applying sun protection, particularly if you are out for any length of time.
If you have plans to be in Richmond Park, the riverside at Twickenham or any of the borough's outdoor spaces today, it is worth packing a waterproof or rescheduling where possible. The forecast suggests this is not a passing shower — heavy rain is flagged as the day's notable feature.
Full hour-by-hour detail is available on the Met Office forecast page.