Looking straight into the camera as he and his wife Camilla tried out the job during a tour of BBC Scotland's studios, Charles, 63, read the bulletin confidently and even added a few of his own personal flourishes.
"This afternoon, it'll be cold, wet and windy across most of Scotland," he said, gesturing fairly convincingly at the map behind him.
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Reading a bulletin that included special references to royal residences in Scotland, he went on: "There's potential for a few flurries over Balmoral -- who the hell wrote this script?! -- as the afternoon goes on."
"In the west the rain will be lighter and patchier. There'll be maybe a few drier interludes over Dumfries House in Ayrshire. Aha!" he said, looking pleased.
Concluding his gloomy forecast, the prince, wearing a suit with a burgundy handkerchief in the pocket, chuckled: "Thank God it isn't a bank holiday."
After Camilla too had a turn at reading the bulletin, BBC weatherman Stav Danaos said he feared for his job.
"They did a great job and were consummate professionals," he said. "The prince even ended with his own pay-off line, which is always good."
Prince Charles is well known for his interest in climate change and environmental issues. "Harmony", a documentary about climate change which the prince narrated, held its worldwide premiere in London last month.
