LONDON, Aug 1 (Reuters) - Britain's pound fell to its lowest level in three weeks on Thursday, as traders waited for a knife-edge Bank of England decision later in the day.
Sterling GBP=D3 slipped to its lowest since July 10 at $1.2806, down around 0.4%.
It also fell against the euro: the euro zone's single currency EURGBP=D3 was up 0.3% at 84.44 pence.
Pricing in derivatives markets showed traders think there is a roughly 62% chance the BoE lowers rates from 5.25%. That is similar to the odds on Wednesday and up from around 58% at the start of the week
0#BOEWATCH .
