A weak northwesterly flow is still settled over the state of Wyoming today.  This will keep flurries or light snow shower activity in the forecast, mainly for far western and southern portions of the state.  Only small, if any, new accumulations are expected and there will be only isolated slick and icy spots on roadways.  We will also see cloudy to mostly cloudy skies and bitterly cold temperatures.  Daytime highs will stay in the teens to lower 20's.  Overnight lows will then drop into single digits and wind chill values will be well below zero.  A low pressure system will strengthen over southwestern parts of the nation on Saturday, which will transport moisture into the state of Wyoming.  Light to moderate snowfall will be possible for western and southern Wyoming, especially in the evening and overnight hours.  Expect around 1-3" with locally higher amounts for western and southern Wyoming, while smaller amounts are expected elsewhere.  Slick and icy travel conditions with some areas of reduced visibility will be likely along I-25 (Colorado state line to Chugwater), US-85 (Colorado state line to LaGrange), WY-28 near South Pass, and all of I-80 during this time.  Light snow or brief snow showers and icy travel conditions will continue for southeastern Wyoming on Sunday, while mainly dry and improving travel conditions are expected for the rest of the state.  Temperatures this weekend will be not as cold as they were on Friday, but it will still be very cold and well below normal.