The Met Office has warned that flash flooding could become more common in the South of England by the end of the century.
Forecasters say there will be an increase in 'localised extreme events', such as the floods in Boscastle in August 2004, where rain fell over an eight hour period and caused extreme flooding in the Cornish village.
The Met Office have also predicted that the flooding will be accompanied by summer heat waves by 2040.
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Outbreaks of rain and drizzle could turn heavy at times, with foggy conditions persisting over main coastal areas. Highs of 13 or 14 C
There will be outbreaks of rain and drizzle today which could turn heavy at times. Maximum temperatures around 13 or 14 degrees
After days of sunshine it's going to be a glum day tomorrow. For the rest of the week, it's sunshine and showers.