|A spectacular rainbow developed at sunset over the St Lawrence Valley late Sunday. It was a perfect end to a not-so-perfect weather weekend in Montreal. (Valley Weather Photo)|
|A tornado moves over Sebago Lake in western Maine on Saturday, July 1st. It was one of four reported in the state on Saturday alone, double the annual average. (TWC)|
The entire region will be under high pressure for the next two days, before more clouds, showers and thunderstorms arrive for Friday and Saturday. The humidity will be on the rise as well as we head into Thursday. Meanwhile in Western Canada, heat warnings are in effect for portions of southern Alberta. A prolonged heatwave is forecast this week for interior B.C., Alberta and Saskatchewan. Some locations near the US border are expecting high temperatures in the middle and upper 30s.