Expect difficult driving conditions due to heavy rain in Devon and Cornwall.
Drivers should be prepared for road problems throughout the counties, including localised flooding and debris along carriageways.
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Hotter again on Monday with temperatures up to 25 degrees. Cooler on the coast and on the Isles of Scilly.
A clear night, hotter again on Monday.
Highs this afternoon of around 23 or 24 degrees. Cooler on the coast.