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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the NewsPrism weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for today’s details, but expect a changeable mix of cloud and light rain through the morning, brightening by late afternoon as a weak ridge pushes in.
What will the weather in Westminster be like today?
Cloudy with occasional drizzle early, then turning drier and brighter from midday. Light winds, feeling mild for the season.
- Maximum temperature around 11–13°C, dipping to 7–9°C overnight
- Westerly breeze 10–15 mph, gusts up to 20 mph near the river
- Rain chance highest before 10am, then gradually fading
- Some sunny spells possible after 3pm, especially around St James’s Park
How does Westminster’s microclimate affect the forecast?
The urban heat island effect keeps overnight temperatures a degree or two higher than the surrounding Home Counties, but shelter from buildings can also trap low cloud.
- Thames mist may linger near the Embankment until mid-morning
- Wind speeds can be gustier in open squares (Parliament Square) than in narrow streets
- Air quality generally moderate; pollen count low for now
- UV index low to moderate – sun protection not essential but not harmful
Will it rain in Westminster tomorrow?
Tomorrow starts dry but cloud thickens by lunchtime, with patchy rain arriving from the west by late afternoon. A damp end to the day is likely, though totals remain light – around 2–4mm.
How accurate is the Met Office weather for Westminster?
For the next 24 hours the Met Office accuracy is high (around 90%) because Westminster is a well-observed urban site. For the longer 10‑day outlook, confidence drops beyond day 5 due to typical Atlantic uncertainty.
Does the River Thames affect Westminster’s weather?
Yes, the Thames creates a localised moisture source, so fog forms more readily in autumn and winter. In spring and summer it can also trigger slight sea‑breeze effects, keeping temperatures a touch cooler near the water.
Sources
For the wider picture, see our UK weather hub or check 10 Day Weather Forecast UK. If you’re comparing conditions, also look at Bristol Weather for a south‑west contrast.