Parts of the Snake River Plain, including Lemhi, Jefferson, Madison, Bonneville, Bingham, Butte, and Power, are under a freeze warning and a frost advisory. The eastern parts of the Magic Valley are also under an advisory. Rain and snow chances are expected to increase through midweek. The potential Hard Freeze is possible in portions of the Arco Desert and low-lying areas along Interstate 86. The weather is expected to remain unsettled throughout the week. The chance for precipitation on Sunday will be 40 percent, with a slight chance of rain and snow between 7am and 9am, then a potential rain.