A Special Air Quality Statement remains in effect for southern Saskatchewan Tuesday.
Environment Canada says smoke is causing poor air quality and reducing visibility.
Westerly winds are spreading significant amounts of wildfire smoke across the Prairies and will continue to do so until a cold front pushes through the region.
The cold front will move through western Saskatchewan Tuesday morning, and then slump southeastwards, moving through eastern Saskatchewan by Tuesday evening, and then across southern Manitoba on Tuesday night. As the cold front passes, cleaner air will move in from the north.
The smoke in the air is thick enough to obscure the view of landmarks on the horizon.
On Monday, the Saskatchewan Legislature Building was engulfed in the smoky haze.
Look for cooler, wet weather later in the week. Daytime highs will struggle to meet double digits on Saturday.