Last 7 days
Today
11° / 8° High / Low (°C)
96% Humidity
100% Rain probability
Rain Condition
~8h Rain duration
What this means
In London on 21 Oct 2026, rain is expected: 100% chance, up to 11.6 mm forecast (source: Open-Meteo).
Moderate rain is expected today for around 8 hours — 100% probability, up to 11.6mm forecast. An umbrella is the right call.
Rain season
London's rain is consistent rather than intense — rarely heavy, but reliably present throughout the year. Autumn (October–December) and winter bring the most persistent overcast and drizzle, while summer can go weeks without rain before a sudden shower. Annual totals (600mm) are lower than Rome or New York; the grey reputation comes from overcast frequency, not volume.