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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the UrbanMixr weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
What is the best time to visit Harrow?
Spring (April–June) and early autumn (September–October) offer the most comfortable temperatures for exploring Harrow’s parks and high street. Summer school holidays can feel busy, but the long daylight hours suit outdoor plans. Winter tends to be damp and chilly, though frosty mornings are common.
What should you pack for Harrow weather?
Layers are your friend year-round. A waterproof jacket is essential for sudden showers, even in summer. In winter, add a warm coat, scarf and gloves. For the live forecast above, check the rain and wind details before heading out – a light umbrella can save the day.
Is it going to rain in Harrow tomorrow?
The live forecast above shows the hourly outlook for tomorrow. For a broader view, check the weather in Harrow London tomorrow on the BBC Weather feed – it’s updated several times a day.
How accurate is the 14-day forecast for Harrow?
Forecasts beyond 7–10 days carry lower confidence, but the BBC and Met Office provide a useful trend. For a reliable 14-day outlook, refer to the harrow weather 14 day data on the Met Office website.
When does the weather turn colder in Harrow?
Typically from mid-November, with frosts possible through to March. The harrow 21 day weather forecast can help you spot the first cold snap. Always layer up and check the live forecast above before leaving.
For a wider view of conditions across the country, visit our UK weather hub or check the 10 Day Weather Forecast UK. Whether you need the weather in Harrow London 10 days ahead or a met office weather Harrow update, the live forecast above is your quickest reference.