Spring continues to spring weather surprises with forecasters warning Dunedin could get a sprinkling of snow overnight.

MetService has issued a road snowfall warning for the Dunedin to Waitati highway as temperatures plummet.

The warning covers from 3am-6am on Sunday.

“Rain may briefly turn to snow about the summit but little, if any, is expected to settle on the road.”

Snow is expected in greater quantities elsewhere in Otago with a heavy snow watch in place for Central Otago and the Queenstown Lakes District.

MetService is forecasting heavy snow above 400 metres, where snowfall amounts may approach warning criteria from 1am-8am on Sunday.

Road snowfall warnings have been issued for the Crown Range Rd and the Lindis Pass with snow predicted to accumulate about the summit in the early hours of Sunday.