As the calendar marks the arrival of Spring, Brits were greeted with an unexpected Arctic chill this morning.

The nation woke up to frost-covered landscapes and thick fog, with temperatures plummeting as low as -7C.

Despite February boasting some of the warmest days on record, the weather took a sharp turn as polar air swept in from Iceland, gripping the UK in a chilly embrace.

Frosty Welcome to March: Polar Air Grips UK, Temperatures Plunge to -7C, Met Office Warns of Chilly Sunday

March kicks off with an unwelcome frosty embrace as polar air makes its way from Iceland to the UK. Temperatures took a nosedive, reaching as low as -7C, prompting the Met Office to issue a warning of a chilly Sunday.

Despite the contrast to the warmth experienced in February, the weather forecast assures a drier and brighter day ahead.

Polar Invasion: UK Shivers as Frost and Fog Descend, Met Office Issues Cold Weather Warning

A polar invasion blankets the UK as frost and fog descend, creating a chilly start to the day. The Met Office, noting the overnight lows of -7C, issued a cold weather warning.

Deer in Windsor were pictured in the thick fog and frost-covered fields, showcasing the impact of the plunging temperatures.

Despite the brisk conditions, some locals were spotted braving the weather for a run.

The aftermath of the weather includes a series of road incidents, crashes, and even flooding in various parts of the country.