The main weather feature will be a trough of low pressure, which will be settled over the entire Rockies and Plains through Friday.  Within this weather system, there will be faster-moving weather disturbances that pass through the state of Wyoming.  A cold front will also dig south across the region on Thursday.  For today, expect partly to mostly cloudy skies, breezy to strong winds, and seasonably cold temperatures.  High temperatures will remain in the 30's and 40's.  There will be a chance for light to scattered snow showers across western and southern Wyoming today, which could create some slick spots on roadways.  There could also be some areas of blowing snow along I-80, mainly near Arlington, which will reduce visibility at times.  Elsewhere, expect a smaller chance for rain and snow showers.  By Thursday and Friday, expect cloudy to mostly cloudy skies with light to moderate snowfall throughout the state.  The best chance for accumulating snow will be in south-central and southeastern Wyoming.  Temperatures will be cold but close to average on Thursday.  We will then see even colder and below average temperatures by Friday.