Tuesday warmed to 60° in Boise. This is the third day in a row topping 60 degree and the fifth day this month! We have a lot of sunshine but cloud cover increases for Tuesday night.
There is a slight risk of a shower around midnight Tuesday night in the Treasure Valley, with a better chance of showers impacting the west central mountains. Temperatures will remain 10-15° above seasonal average into Wednesday, then gradually cooling into the weekend. An Air Stagnation Advisory is in effect for the Treasure Valley extending to Mountain Home through 11:00 AM Thursday as inversions will continue to lead to deteriorating air quality.
During the weekend, a low pressure system from the Gulf of Alaska will make its way into the Pacific Northwest. Wind ramps up and temperatures will cool closer to 50° by Sunday. Light snow showers impact the central mountains, while scattered rain showers can be expected in the valley primarily Saturday night but could last into Sunday morning.
