WeatherWatch.co.nz says the forecast for today's last Big Day Out in New Zealand is still looking mostly good despite the continued 30% risk of a shower.

A large high pressure system continues to hold over the upper North Island bringing mostly summer-like weather to Auckland.

WeatherWatch.co.nz predicts temperatures will be around 23 today in the shade but could still get very hot in the stadium if the clouds stay away.

However afternoon clouds are expected to build up and as we predicted earlier this week, there is the risk of an afternoon shower due to cloud build ups - with a 30% chance of an isolated heavy shower.