Frosts are in the forecast for both islands over the next couple of nights and temperatures drop further north following a southerly flow today.

The colder air will linger until Thursday morning bringing colder than average weather, especially for the North Island.

WeatherWatch.co.nz says frosts will make it as far north as Waikato and even sheltered parts of Auckland over the next couple of nights.

But it’s short lived.

By Thursday night milder air moves in with overnight lows in Southland over 4 degrees above normal by Friday morning. That milder air then moves northwards covering all of NZ this weekend. It won’t last too long though. By Monday next week a wintry southerly returns to the country.