A frontal system moves from west to east over the South Island in the morning today then the North Island later in the day / overnight, meanwhile ex Tropical Cyclone Donna positions itself just north of the North Island overnight.
Northland, Auckland, Waikato & Bay Of Plenty
Rain, heavy from late afternoon or evening. A chance of torrential falls late evening / overnight. Breezy north to northeasterly winds change southerly overnight.
Western North Island (including Central North Island)
Rain with heavy falls about Taranaki, heavy falls peak in the evening and may become widespread for a time before easing for all overnight. Northeasterly winds tend northwest overnight.
Eastern North Island
Cloudy with showers developing in the morning then rain from later in the evening. Rain becoming heavy overnight. Gisborne may experience dry spells at times during the day till rain sets in overnight. Breezy northeasterly winds.
Areas of rain, easing in the evening then clearing later on. Breezy Northerly winds.
Marlborough & Nelson
Rain, heavy falls possible then clearing in the evening. Breezy northerly winds.
Morning spots / areas of rain then sunny spells break through, chance of a further late afternoon or evening shower as light northerly winds change southwest.
Early heavy rain eases to showers in the morning, a chance showers may still be heavy however with the odd rouge thunderstorm then easing further late afternoon. A few sunny spells may start to break through after midday. Breezy northeasterlies tend lighter northerly after midday.
Southland & Otago
Morning high cloud with spots of rain possible then breaking to sunny spells, a few overnight showers as light winds freshen from the southwest.
By Weather Analyst Aaron Wilkinson – WeatherWatch.co.nz