With clear skies and light winds a widespread ground frost is expected for Saturday night.
General lows are expected to dip to 2/3C but in well sheltered spots an air frost is certainly possible (air temps at freezing or just below).
Patchy mist and fog will also form overnight and linger well into Sunday morning.
Despite a chilly, misty start Sunday is dry with a good deal of Autumn sunshine. Temperatures up to 13C by the afternoon.