New Delhi, Aug. 10 -- The persistent rain kept Delhi's maximum temperature at 26.4degC on Saturday - the lowest for August in at least 34 years, according to the India Meteorological Department (IMD). The last colder August day was on August 28, 1991, when the maximum was 25.8degC. Saturday's minimum temperature was 23.8degC, less than three degrees below the day's maximum. IMD officials said the cool spell will last through at least Sunday, before temperatures rise next week. "On Sunday, the maximum is likely to be 28-30degC, with a minimum of 23-25degC. From Monday, the maximum may rise to around 33degC and the minimum to 24-26degC," an IMD official. Rainfall eased in the second half of Saturday, with only 0.6 mm recorded between 5.30pm a...