The exact day Met Office forecasts sunshine will return with highs of 21°C
Temperatures in Wales are set to hit highs of 21°C this week, but there is rain in the Met office forecast first.
The effect of Hurricane Larry in the Atlantic will bring an area of high pressure to the UK by the end of the week, with Thursday looking like the best day.
It will be warm and dry, but unlikely to see the same highs as last week when temperatures reached 30.7°C at Gogerddan, near Aberystwyth.
Welsh forecaster Sabrina Lee says: "On the whole this week doesn't seem to be too unsettled. Wednesday and Thursday look set to be largely dry."
A Met Office forecaster says: "As ex-Hurricane Larry approaches Iceland, we drag in warmer weather from Tuesday.
"Monday and Tuesday has rain but also bright spells, with many regions dry on Wednesday and Thursday with sunny spells.
"Friday has a spell of rain for many areas - but through the weekend and beyond has a signal for mostly fine and dry weather in the south, with temperatures near to above-average."
Monday in Wales will start cloudy with "intermittent outbreaks of light rain throughout" and temperature highs of 19°C.
The Met Office says that southwestern areas will see the odd heavier downpour into the afternoon, as rain becomes more showery.
Overnight into Tuesday, heavier rain becomes widespread across the southwest through the evening, then is likely to move north overnight with a few rumbles of thunder possible.
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The Wales Met Office forecast for Tuesday says: "A wet day in the north and east, with widespread rain, heavy and possibly thundery in places. Becoming drier and brighter for all into the evening as rain clears. Maximum temperature 20 °C."
The outlook for Wednesday to Friday says: " Misty starts in places on Wednesday and Thursday, then becoming fine and largely dry with sunny spells, feeling warm in these. Wet and windy Friday morning, becoming drier later."
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