The Lions have scored their third try, through George North.
It was created by Leigh Halfpenny, who caught a high ball, beat two Australian tacklers and drew a third, feeding North to finish in the corner.
Halfpenny couldn't add the extras from out wide, but the Lions lead by 18 points.
More top news
Rain in the east will clear through this evening leaving much of the night drier with clearer spells.
Emergency services are being put through their paces in a two-day anti-terror exercise.
Carwyn Jones includes repealing the UK government's new restrictions on public sector strikes in his legislative programme.