An upper-level weather system and cool front will become settled over the state of Wyoming for the rest of today and Saturday.  For today, expect partly to mostly cloudy skies with a good chance for rain showers during the day.  Rain will then be likely tonight and could become heavy at times.  Areas of fog and lowered visibility will be possible in the southeast through mid-day and will then return for the evening and overnight hours.  There will also be a chance for patchy fog across central and eastern Wyoming tonight.  Temperatures will become cooler and closer to average statewide today, with daytime highs in the 50's and 60's.  There could also be some lower 70's across central and south-central Wyoming.  Cloudy, overcast skies and rain showers will then continue to be likely on Saturday.  There will also be a chance for early and late fog across central and eastern Wyoming.  Temperatures will be even cooler and well below average for the start of the weekend.  Our latest weather system and cool front will then move out of the region on Sunday.  However, some subtropical moisture will be transferred into the region as another weather system pushes into western portions of the nation.  Expect more clouds than sun, cooler than normal temperatures, and lingering rain showers throughout the state on Sunday.