A large trough of low pressure will move into the Pacific Northwest and California today and will remained settled over the region through at least the end of the work week.  This will funnel subtropical moisture and atmospheric instability into the state of Wyoming during this time.  Expect more clouds than sun with daily chances for rain showers and thunderstorms.  There will also be a chance for strong to severe thunderstorms across central and eastern Wyoming, especially this afternoon and evening.  Any storms that develop will be capable of producing hail, damaging winds, and brief periods of heavy rain.  Temperatures will also be cooler and closer to average today, with daytime highs in the 60's and 70's.  Mild, seasonal temperatures will continue on Thursday and Friday.