High pressure will be the main weather feature across the state of Wyoming today.  Expect sunny to mostly sunny skies, breezy winds, and dry weather conditions statewide.  Temperatures will also be warmer and well above normal, with highs in the 50's and 60's.  An upper-level weather system will slide across Colorado on Saturday.  As a result, some moisture and atmospheric instability will be forced into Wyoming for the start of the weekend.  Expect thickening clouds and breezy to strong winds, but temperatures will remain unseasonably mild.  There will be a chance for rain and mountain snow showers across western, central, and southern Wyoming.  Rain could also mix with and turn to snow over the higher elevations of I-80 later in the day.  With the exception of the mountains and mountain passes, roads will only be wet.  Another larger and slower-moving weather system will approach western Wyoming throughout the day on Sunday and will then become settled over the entire region for the first half of next week.  Expect more clouds than sun, breezy to strong winds, and slightly cooler temperatures for the entire state on Sunday.  There will be a small chance for rain and mountain snow showers in western Wyoming, while conditions stay mainly dry elsewhere.  Significantly colder temperatures, more unsettled weather conditions, and possible travel concerns will be found throughout the state Monday through at least Wednesday of next week.