A video filmed by neighbour Karen James in Coleford shows the size of a fire at Newland House last night.
The country house has been severely damaged after the fire burned throughout the night.
More top news
A blustery start to the day will be followed by rain as the morning progresses.
A wet and windy start for many areas, with some heavy rain at times.
Cloud will thicken and rain will strengthen in the early hours, creating a blustery night.