Showers return to southern Alberta Thursday, as a trough of low pressure in the upper atmosphere moves from NW British Columbia southeastward through Alberta. Instability caused by the trough could also kick off a few scattered thundershowers, especially in the afternoon. The disturbance will be well to the south and east of us on Friday, allowing the sky to become mainly sunny again. Temperatures should rise to the low twenties in the sunshine Friday and Saturday, before cooler and wetter weather returns on Sunday.
Wednesday night: Mainly clear, low 10
Thursday: Mostly cloudy, showers, chance of a thundershower, high 16
Friday: Mainly sunny, high 22
Saturday: Partly cloudy, high 23
Sunday: Mainly cloudy, rain, chance of a thundershower, high 16
Monday: A mix of sun and cloud, high 14