Canadians across the country could catch a glimpse of the northern lights tonight, so make sure to look up. The northern lights are forecasted to be particularly intense over northern and western Canada tonight. The northern lights are expected to be the most intense between 11 p.m. and 2 a.m. EDT, according to the NOAA. Macmillan Space Centre, in June about the increasing frequency of northern lights activity in Canada. So, luckily for skywatchers, the northern lights show tonight may not be the last of the year.