New Delhi, May 13 -- The Regional Weather Forecast Centre, Delhi, on Wednesday forecast thunderstorm accompanied by lightning and strong winds gusting up to 50 kmph for Delhi tonight, with maximum temperatures expected to range between 37 and 39 degrees Celsius.

According to the IMD's Daily Weather Report and Forecast Bulletin issued on Tuesday evening, maximum temperatures in Delhi are set to rise gradually by 3 to 5 degrees Celsius over the next seven days, with no large change in minimum temperatures expected during the next four days.

On Tuesday, the maximum temperature at Safdarjung, Delhi's base station, was recorded at 39.0 degrees Celsius, a departure of minus 0.5 degrees from normal, while the minimum temperature was 27.6 degre...