A large but fairly weak sub-tropical low will drag down more humid northerlies this weekend and areas of rain – some slow moving heavy falls are in the mix but so too are drizzle patches and dry spells.

The low isn’t very strong so the rain bands will weaken in some areas due to the mountains and ranges getting in the way.

By Sunday, rain will be pushing down into parts of the South Island as well.

We also take a look at the tropics where a number of lows are developing and may turn into a cyclone this weekend.