London's weather forecast for October 21: Mainly sunny with mild temperatures

Today promises to be a beautiful day with mainly sunny skies and mild temperatures. The morning will start off cool with temperatures around 11°C, so a light jacket might be necessary. As the day progresses, the sunshine will dominate, making it a great day to spend time outdoors. With only 20% cloud cover, you can expect plenty of sunshine throughout the day.

The air quality is at a moderate risk level, so those with respiratory issues should take necessary precautions. The UV index is low, so while sunscreen is always a good idea, there's no need to worry about high UV exposure today.

As the evening approaches, temperatures will start to drop, so if you're planning to be out, consider bringing a warmer layer. The sunset at 6:32 PM will provide a picturesque end to the day.

Looking ahead to tomorrow, the weather will continue to be mainly sunny with temperatures rising to a pleasant 23°C. With eight hours of sunshine expected, it's another perfect day for outdoor activities.

Given the lovely weather, today is ideal for a walk in the park, a bike ride, or even a picnic. Enjoy the sunshine and make the most of this beautiful day!

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This article was generated with the use of OpenAI and The Weather Network's forecast data. The article was reviewed by the editorial team for accuracy and clarity. For more details visit our AI Code of Ethics.