Heavy rain expected in Chiswick today despite a mild 24°C high
30 September 2026 · By Boroughly editorial — AI-assisted, human-reviewed.
Chiswick residents should keep a coat and umbrella to hand today: the Met Office is forecasting an 85% chance of rain, with heavy downpours expected at some point during the day.
The temperature picture is more pleasant — a high of 24°C is unusually mild for the last day of September, with an overnight low of 14°C. The UV index sits at 3, so sun cream is not a priority, but warmth certainly is once the rain arrives.
The partly cloudy conditions mean there may be bright spells between showers, so the day is not a complete washout — but anyone with plans outdoors, whether walking along the Thames towpath or heading to Chiswick's weekly market, would be wise to build in some flexibility. School drop-offs this morning could be particularly wet, so waterproof layers for children are worth a thought.
The forecast covers Wednesday 30 September in full, so evening journeys home are also likely to be damp. Allow a little extra time if you are cycling or travelling on foot. Full Met Office forecast for Chiswick