"For tomorrow, we are expecting the cloud to increase so it will become more overcast and Hawke's Bay does have showers developing from the afternoon."
He said the showers will become heavier about the Wairoa district in the evening.
As for temperatures, the easterly winds will bring the minimum up to 11C .
"It will feel a lot better from tomorrow because the easterly winds and the rain will warm the lower temperatures."
North Island will see rain, possibly heavy in the north and east, with gales possible. Rain easing in the north later. The South Island will be mainly fine in the west and south, with morning frosts. It will be cloudy in the east, with rain developing in Marlborough and northern Canterbury.
On Wednesday the national long-range forecast for the North Island indicated heavy rain in the east, easing on the East Coast. Scattered rain was predicted elsewhere, easing to a few showers.
In the South Island, rain was forecast in the east, possibly heavy in coastal Marlborough, gradually easing. It was expected to be mainly fine in the west and south.
In addition, southeast gales could become severe in places, becoming confined to Hawke's Bay and Wairarapa on Wednesday.
"It's all very normal for this time, typical winter weather."