A low pressure system will slowly approach western Wyoming today, while higher pressure builds throughout the rest of the state.  This will cause winds to increase and become breezy to strong across the state by later this evening and overnight.  Winds across southern Wyoming could gusts as high as 50 mph at times.  Western Wyoming can expect partly to mostly cloudy skies with rain showers and mountain snow today.  Elsewhere, expect minimal cloudiness and mainly dry weather conditions.  Temperatures will be mild and well above the normal for this time of year statewide, with highs in the 50's and 60's.  This low pressure system will then move across the entire region late Tuesday into Wednesday and will remain settled over the region through the end of the week.  A strong cold front will also slide across the state late on Tuesday.  Expect increasing clouds, strong winds, and a chance for rain showers and mountain snow statewide on Tuesday.  Temperatures, however, will remain warmer than normal.  Rain will mix with and turn to snow across lower terrain areas of southwestern and south-central Wyoming on Tuesday night.  Watch out for developing slick and icy spots for these areas, including on I-80 from the Utah state line to Laramie and possibly over the Summit.  We will then see significantly colder and well below average temperatures on Wednesday, Thursday, and Friday.  With the exception of southeastern Wyoming, scattered snow showers are expected statewide on Wednesday.  Roads will stay mainly wet across lower elevations during the day and will then become slick and icy by the evening and overnight hours.  Snow will then develop across southeastern Wyoming Wednesday night into Thursday.  Roads will likely remain slick and icy statewide into early Thursday morning.  Light snow will remain in the forecast throughout the state on Thursday and Friday.