Tonight will be a cold night nationwide as polar air smothers the country bringing a return to frosts tonight (or tomorrow night) as the southerly heads northwards.

There are plenty of showers, but due to the windflow changing directions from day to day these showers continuing affect different regions. We tell you when and where.

Despite Saturday briefly warming up, the next polar change comes in on Sunday/Monday.

Frosts may be a problem for growers, while wind chill will be an issue for newborn livestock, especially newborn lambs. You can view hourly windchill temperatures for any part of NZ via the WeatherWatch app: https://www.weatherwatch.co.nz/mobile-app

We have the latest frost risk map, 7 day rainfall and wind gust and temperature maps covering the main weather features coming up.