Notting Hill Carnival-goers may be hoping for Caribbean sunshine, but it looks like the weather may be more typically British. The Met Office forecasts heavy rain and thunderstorms for Sunday. Monday is looking a little brighter, but cool – with showers and temperatures in the low 20s.

About a million people are expected to pack the streets of west London for one of the world's biggest street parties. Judging from these photos of the 2014 carnival, wet weather won't put a damper on the spirits of determined revellers.

Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Stuart C Wilson/Getty
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Olivia Harris/Reuters
Notting Hill carnival weather
Toby Melville/Reuters
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Leon Neal/AFP
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Mary Turner/Getty
Notting Hill carnival weather
Leon Neal/AFP