The yellow alert has been issued for across the area and Hampshire and remains in force until 9am.
In the warning the Met Office writes: ‘Whilst many places will be dry or see little rain, thunderstorms may cause flooding and disruption in a few places.’
32 degress was recorded in Portsmouth on Thursday, June 25. Pictures taken from the Hot Walls and Southsea seafront. Picture: Sarah Standing (250620-4960)
Here is the hour-by-hour forecast for overnight in Portsmouth:
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