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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the MarketUK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Harrow’s current conditions and the next few hours; this gives you the most reliable snapshot before planning any outdoor activity or travel in the London borough.
What is the weather in Harrow London today and tomorrow?
Based on the live forecast above, today’s high in Harrow is expected in the mid-to-late afternoon, with overnight lows dropping by several degrees. For weather in Harrow London tomorrow, expect a similar pattern of cloud cover and a chance of light rain, though the timing of any showers may shift. Check the 10-day tab on the live forecast for a broader outlook on the week ahead.
How accurate is the Met Office weather for Harrow?
The Met Office weather for Harrow uses local observation data from stations in northwest London, giving short-range forecasts (0–3 days) a high reliability rate. For longer planning, such as a harrow weather 14 day or harrow 21 day weather forecast, confidence decreases; use the 30-day trend as a guide rather than a precise prediction.
Frequently asked questions about Harrow weather
What is the best source for bbc weather harrow 30 days?
The BBC Weather 30-day outlook for Harrow shows general trends, not exact daily forecasts. For a more detailed bbc weather harrow 14 days view, use the 14-day tab on the live forecast above, which updates with model runs every 6–12 hours.
Will it rain in Harrow London tomorrow?
Check the live forecast above for the rain probability slider. Typically, if cloud cover is above 60% and humidity is high, a light shower is possible. The met office weather harrow site also issues yellow warnings if heavy rain is expected.
How does Harrow weather compare to central London?
Harrow is slightly cooler than central London, especially at night, due to less urban heat island effect. For a comparison, see the UK weather hub or check Birmingham Weather for a different regional baseline.
Sources
For longer-range planning, browse the 10 Day Weather Forecast UK or the Liverpool Weather page for a northwest comparison. The harrow weather 15 days and bbc weather harrow 14 days data are best used for spotting broad shifts rather than exact timings.