Aucklanders face a miserable drive home from work tonight with rain poised to hit the city during rush hour.

The top of the country is set for a drenching as more wet weather saturates the North Island today.

At least two central North Island highways have been affected by heavy rain, with State Highway 1 between Bulls and Hunterville closed by flooding and SH3 north of Urenui partially blocked by a slip.

MetService has issued a weather watch across northern regions including Auckland north of the Harbour Bridge, Northland and Great Barrier Island. Rain is expected after lunch and to last until tomorrow.