A dry and mainly stable air-mass will be settled over far southwestern portions of the state for the rest of today, Tuesday, and Wednesday.  Expect partly to mostly sunny skies, mainly dry conditions and seasonably warm temperatures (70's and 80's) during this time.  Meanwhile, a large trough of low pressure will remain over the rest of the state through mid-week, which will cause a series of fast-moving weather systems to pass through the region.  An unseasonably strong cool front will also slide across much of the state today.  We will see partly to mostly cloudy skies, early patchy fog, and a good chance for rain showers and thunderstorms across northern, central, and eastern Wyoming until Wednesday.  Heavy rain, hail, and gusty winds will also be possible, mainly today and Tuesday.  Temperatures will be mild and below average today, with daytime highs in the 70's.  Expect even cooler and well below average temperatures (60's to lower 70's) by Tuesday.  Temperatures will be a few degrees warmer (70's) on Wednesday, but it will still be cooler than normal.