The final week of July is climatologically the warmest of the year in Star Valley. However an unseasonably strong upper trough will bring a taste of fall in Mid-summer to western Wyoming early next week.
|500 mb Forecast 6am Tuesday July 28 2015|
|Surface Pressure and temperatures 6am Tuesday July 28 2015|
Temperatures in the typically colder valley locations could drop to the mid 30’s by Tuesday morning with areas of frost. Similar conditions could also reoccur Wednesday morning prior to much warmer temperatures as high pressure develops over the area.
If these temperatures are reached they would be near record lows for the last week of July.