A cold start and it just keeps going...

Temperatures this morning are very cold for this time of year as cold air has a gateway to the north this week. A ridge of high pressure will settle in this week and it looks like the connection to the Arctic circle will make for below normal temperatures for the rest of this week.
You can see in this series of surface charts that showers are moving along a weather system to our west.


You get a hint as to how cold the air is to the north as you can see some snow all the way down to southern Canada.
By the end of the day tomorrow the models do bring in some shower chances but I think for the far north and east it's going to be a long shot.
By Wednesday morning we are seeing colder air and an 850 mb high sitting across the area. 850 temperatures are only about +2 so even with the strong May sunshine it's going to be difficult to warm up too much.

Thursday still looks cold with 850 temperatures actually around 0 degrees Celsius.

Still cool Friday with 850 temperatures warming a bit to about +5 by the end of the day Friday.
That stubborn high is still in place on Sunday but you can begin to see things warming up out west and this will dislodge the cooler air I think by Monday.