Canberra has just had its warmest day since April and the equal windiest since January. Temperatures climbed through the ACT today as warm and gusty northwesterly winds pushed through ahead of a low pressure trough. The mercury reached a high of 26.1 degrees at Canberra Airport, seven above average and the warmest day in six months. The warm winds also gusted to 81.5km/h shortly before 5pm. Apart from a gust of the same speed recorded one and a half weeks ago, this was the strongest registered gust in nine months. Temperatures had already dropped to 20 degrees by 5:30pm as cooler westerly winds moved in behind the trough. These winds will ease in Canberra this evening as they tend more southwesterly, allowing the mercury to dip to a low of about four degrees overnight. A top of 19 degrees on Monday will be a contrast to today's warmth, although the good news is that winds will be lighter too.