Northland to Bay of Plenty: Patchy drizzle.
Waikato to Wellington, including the central high country: Scattered rain, becoming widespread tomorrow afternoon and heavy thundery falls spreading north, clearing south of Wanganui at night.
Gisborne to Wairarapa: Fine with high cloud. However, brief rain developing in Wairarapa tomorrow evening.
Western Nelson, Marlborough Sounds and Buller to Fiordland: Showers turning to rain overnight with heavy thundery falls, gradually easing to showers from the south tomorrow.
Remainder of Nelson and Marlborough, also Canterbury: Fine apart from scattered rain tomorrow afternoon.
Otago and Southland: Mainly fine tonight. Scattered rain developing tomorrow, clearing inland late afternoon or evening. Chatham Islands: Patchy drizzle turning to rain tomorrow evening.