Today in Portsmouth,the weather will deteriorate, becoming increasingly unstable. Very cloudy with risk of thunderstorms in the morning, warning: lots of violent storms in the afternoon. Heavy showers in late morning, heavy rain followed by showers in the afternoon. Light winds.
The reliability of the situation is good.
Temperatures will vary between 24 and 27°C, it will be warm in the afternoon.
Tonight,skies clearing but continuing risk of storms. Light showers progressively becoming less frequent. Light winds.