One of the big draws on the Maes is the Open Art Exhibition.
Fifty-six artists have been chosen this year to show their work - and nearly half of them are taking part in the Eisteddfod for the first time.
Carole Green caught up with one of the newcomers.
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It'll be a rather cloudy and windy evening and night in most areas with showery outbreaks of rain, some heavy.
Western Power Distribution say almost a thousand homes are without power due to damage caused by Storm Brian.
Helping young people 'earn, learn or serve' is among the policies Plaid Cymru will focus on ahead of the next election.