Sydney is forecast to break a September heat record, reaching at least 32 degrees for two days running in a wave of heat not seen in the city since last summer. Northwesterly winds push across New South Wales tomorrow ahead of a cold front surging into the nation's southeast. These winds will drag a very warm airmass from the interior towards the state's coast. The city reached 32.9 degrees today, the hottest day since January 2nd. For those that hit the beach, the seabreeze remained absent until late afternoon, making it a pleasant place to be. Tuesday is tipped to be even warmer than today, nudging the mid-30s right across the suburbs. The city's hottest September day on record was recorded in 1965 when the mercury hit 34.6 degrees, one which may be challenged. If the city reaches 32 degrees on Tuesday it will become the hottest pair of September days in 156 years of records. Unfortunately the heat on Tuesday will be associated with dry and windy conditions, resulting in an increase in pollen and fire danger. Thankfully the conditions are not quite as ripe for bushfires as last year, after a combination of a very wet August and near-average September conditions meant drying out has not occurred as rapidly. After a warm Tuesday night with the temperature staying above 20 degrees for much of the night, a cooler change will sweep through by about sunrise on Wednesday, causing temperatures to drop closer to average. During the day it will only warm to the low 20s, as much as 13 degrees cooler than the day before. This cooling will be most noticeable on the coast where southerly winds will be strongest. The cooler weather will not last long though as heat begins to build again, with the long weekend set to be a real stunner across Sydney.