An upper-level weather system will slide across the state of Wyoming during the day.  This will create a chance for snow shower activity for higher elevations and the state's mountains.  We also cannot rule out a few flurries or light snow showers, especially across eastern Wyoming, later today into tonight.  Otherwise, expect partly to mostly cloudy skies.  Temperatures will be noticeably colder and closer to average statewide due to a cold front that passed through the area yesterday.  Daytime highs will be in the 20's and 30's.  Canadian high pressure will slowly build over the region on Wednesday.  Expect even colder and well below average temperatures throughout the state.  Conditions stay mainly dry for western, central, and southeastern Wyoming, but there could be a chance for snow in northern portions of the state as well as the state's mountains.