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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Headlines UK weather desk. Data from national met services via Open-Meteo.
A Met Office yellow warning for rain is in place across parts of the South West from Wednesday evening until Thursday afternoon, with heavy downpours expected to bring localised flooding and travel disruption.
What areas are affected and when?
The warning covers Devon, Cornwall, Somerset and parts of Dorset from 6pm Wednesday to 3pm Thursday. The heaviest rain is expected overnight and during Thursday morning rush hour. Some areas could see 30–50mm of rain in six hours, with a small chance of up to 70mm on higher ground. This follows a wet spell that has already saturated the ground, increasing the risk of surface water flooding.
What should you do to prepare?
Check your flood risk on the government website if you live near a river or in a low-lying area. Allow extra time for travel on Thursday morning — roads may be blocked and bus or train services delayed. Secure loose garden items and ensure gutters are clear. For the latest updates, see our Moderate Rainfall Warning page and the UK weather hub. A separate storm to hit Britain this weekend is also being monitored by forecasters.
Will there be snow or further warnings?
The Met Office has not issued a snow warning for the South West at this stage, but colder air could bring wintry showers to higher ground later in the week. Check the 7 day south west weather forecast for the latest. For a longer outlook, see the south west weather 14 day forecast from the Met Office. Additional weather warnings today may be issued if conditions worsen.
Is the South West weather warning likely to be upgraded?
The Met Office currently rates this as a yellow warning. An amber upgrade is possible if rainfall totals exceed forecasts or if flooding becomes widespread. Check live updates on the UK weather hub.
What should drivers do during the warning?
Reduce speed on wet roads, leave extra braking distance, and never drive through floodwater — just 30cm of moving water can float a car. Plan an alternative route if your usual road is prone to flooding.
Does this warning affect the weekend forecast?
Yes. The rain clears on Thursday evening, but a storm to hit Britain this weekend could bring further wet and windy weather to the South West. Keep an eye on the south west weather 14 day forecast met office for updates.