A polar blast heading up from the deep south will make a mockery of the misnamed "winterless north" as night temperatures plummet to an icy overnight 3C this week.
Expect frost, hail and ice-cold southerlies.
The daytime high in the region today is expected to sit around 13C and drop to 11C tomorrow as the southerly winds wreaking havoc further south drive their way northward.
Heavy rain and a thunderstorm watch eased off overnight, but off-and-on showers - and possibly light hail - are expected to sting Northland until Friday.
Those unfriendly southerlies will become gusty in the next couple of days but reduce on Friday.