I hear that Europe has been having unpredictable summers these paast few years but what are the high and low temps on a normal summer day? We are looking to book the Holiday Inn Bloomsbury but the rooms do not have A/C (our original choice was the Bonnington but it is twice as expensive). Being a spoiled North American we have come to rely heavily on A/C. We don't mind hot temps during the day and as long as it cools down at night I think we'll survive...LOL!!!