Ottawa experienced a second day of “dangerously hot and humid conditions” with the temperature hitting 33 C Tuesday, but relief is on the way tomorrow. It was 33.3 C at 1 p.m., with the humidex making it feel like 42. An Environment Canada heat warning remains in effect for Ottawa and eastern Ontario. “The first significant heat event of the season with dangerously hot and humid conditions continues through today,” the weather agency said. The forecast called for a high of 34 C today, with the humidex making it feel like 43. The record for the warmest June 24 in Ottawa is 34.4 C, set in 1919. The temperature hit 35.2 C on Monday, the hottest temperature recorded in Ottawa on June 23. Ottawa Public Health warns the extreme heat can be dangerous. “Because it’s the first of the season, it takes our bodies a couple of days to adjust to this type of hot weather,” Michelle Goulet, a public health inspector with Ottawa Public Health, told CTV News Ottawa. OC Transpo has implemented speed reductions on O-Train Line 1, Line 2 and Line 4 due to the hot weather. The speed restrictions will be lifted when the temperatures drop below 30 C. Environment Canada is calling for a high of 28 C on Wednesday, before temperatures drop to 23 C on Thursday and 21 C on Friday. Ottawa forecast It will be partly cloudy in Ottawa tonight with a 40 per cent chance of showers early this evening with a risk of thunderstorms. Wednesday will be mainly sunny. High 28 C, with the humidex making it feel like 30. It will be mainly cloudy on Thursday with a 30 per cent chance of showers. High 23 C. The outlook for Friday calls for mainly cloudy with a 60 per cent chance of showers. High 21 C. Saturday will be cloudy with a 40 per cent chance of showers. High 22 C. The normal temperatures for this time of year are a high of 25 C and a low of 15 C.