Met Office hour-by-hour forecast and weather maps for Wales as storms set to replace sun

A yellow weather warning for thunderstorms comes into force at 1pm on Sunday as heavy showers bring an end to the sunny weather. The warning covers the majority of the country with areas west of Bridgend and parts of Gwynedd and Anglesey spared.

There is the potential for sudden flooding and possible damage to buildings from floodwater, lightning strikes, hail or strong winds. The warning is in place until 11pm on Sunday but parts of west Scotland will continue to be affected.

A Met Office meteorologist said: "A dry and bright start to the day with thundery showers developing in the afternoon bringing heavy rain, hail, lightning accompanied by gusty winds. Feeling warm in any sunshine. Turning drier this evening with heavy showers gradually clearing to the north. Occasional clear spells by dawn with the odd shower still possible. Staying mild." For the latest Welsh news delivered to your inbox sign up to our newsletter.

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On Monday the weather will be unsettled from the west with heavy and persistent rain sweeping across much of the country by the afternoon accompanied by blustery winds and feeling much cooler. The outlook for the rest of the week will see longer spells of rain on Tuesday followed by sunny spells and showers on Wednesday and Thursday with those showers becoming heavy at times.

Here is an hour-by-hour forecast for Wales on Sunday:

10am

The weather remains dry throughout Wales and particularly sunny in Pembrokeshire. It's more cloudy in the southeast but temperatures remain above 15C.

11am - 1pm

Increasingly sunny weather in the west and further up the coast towards Aberystwyth. Temperatures reach as high as 22C.

2pm -3pm

Rainfall begins to fall in mid and north-west Wales with the majority of the country largely unaffected. Temperatures fall to 16C in Pembrokeshire.

4pm - 5pm

Thunderstorms begin in north Powys with rainfall predicted in north Wales, the Welsh border, and parts of the Vale of Glamorgan. Highest temperatures of 22C.

6pm - 7pm

Remains largely dry in the south with rain continuing to fall in north Powys and the north-east. Temperatures as low as 14C in Pembrokeshire.

8pm - 10pm

Thunderstorms have now dispersed but rain continues to fall around north Powys and the north-east. Warmer in the east with temperatures falling to 13C in Pembrokeshire.