Vuska said the high will be around 15C.
Wednesday is expected to be raining across the East Coast of the North Island, due to northeasterlies.
The high is expected to be 14C, and residents will also notice a breeze, although the wind is unlikely to be strong.
Thursday and Friday are looking similar, with northeasterlies bring occasional rain, and a high of 14C.
Vuska said on Monday, Hawke's Bay will be one of the places to be around the country, with much of the rest of the North Island seeing showers and cloud for most of the day.
By mid-week, with northeasterlies coming in, Vuska said the people on the western side of the country will be faring slightly better than those in the East.
"It's just going to be an uneventful wet week."