We have another Dense Fog Advisory out through 10 a.m. Wednesday for Jasper, ... we will get to bask in abundant sunshine and lots of blue sky this week as chilly mornings give way to mild afternoons.

The dominant process responsible for the blue colour of the sky is Rayleigh scattering, named after the British physicist Lord Rayleigh, who first described it in the 19th century.

Learn why the sky is blue through the lens of physics and chemistry. Discover the science behind Rayleigh scattering, light wavelengths, and atmospheric composition in this detailed explainer.

Forecasters warn that hazy, grayish-blue skies could persist for many weeks as fires continue to burn, though most smoke will remain high in the atmosphere.

Saturday could start off with some patchy fog, but it won’t last all day. We are forecasting to see some sunshine by the afternoon. Daytime highs will be in the 40s and 50s across the region.