Residents in the Wimmera need to brace for another cold night and morning, with temperatures below zero forecast for much of the state for Tuesday morning.

A severe frost warning has been issued by the Bureau of Meteorology for all of Victoria, including the Wimmera, Mallee, Northern Country and South West forecast districts, with temperatures of down to -3 degrees expected in some areas.

At around 6.00 am both Horsham and Hopetoun are forecast to get down to -2 degrees, Nhill 0 degrees, and Warracknabeal 2 degrees, although temperatures at ground level can be many degrees lower than those recorded by standard weather stations, especially in the predicted calm conditions with very clear skies.