National Weather Service United States Department of Commerce

Arctic air to drop temperatures across the northern Plain and northern Rockies; will bring snow to the Intermountain West

An arctic front is forecast to plunge through the northern Plains and northern Rockies on Saturday bringing a drastic drop in temperatures across these areas with a burst of snow over much of the Intermountain Region. Arctic air will also filter into the Pacific Northwest bringing with it snow showers and subfreezing low temperatures.
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Current Conditions

Upper Treasure Valley

Zone Forecast

  • Tonight Mostly cloudy. A 20 percent chance of rain in the evening. Lows 39 to 44. Southeast winds up to 10 mph.
  • Saturday Rain...mainly in the afternoon. Chance of rain 80 percent. Highs 48 to 54. Southeast winds 10 to 15 mph in the morning...shifting to west in the afternoon.
  • Saturday Night Rain and snow showers likely in the evening... Then partly cloudy after midnight. Chance of precipitation 60 percent. Snow level 3500 feet in the evening. Little or no snow accumulation. Much colder. Lows 19 to 24. Northwest winds 10 to 15 mph.
  • Sunday Sunny. Much cooler. Highs 32 to 37. Northwest winds up to 10 mph.
  • Sunday Night Partly cloudy. A 20 percent chance of snow after midnight. Lows 18 to 23. East winds up to 10 mph.
  • Monday Increasing clouds. A chance of snow...mainly in the afternoon. Chance of snow 30 percent. Highs 37 to 42.
  • Monday Night Cloudy with a 30 percent chance of rain. Not as cold. Lows 28 to 33.
  • Tuesday And Tuesday Night Decreasing clouds. A 20 percent chance of rain. Highs 43 to 48. Lows 28 to 36.
  • Wednesday Mostly cloudy with a 50 percent chance of rain showers. Highs 42 to 47.
  • Wednesday Night Through Thursday Night Mostly cloudy with a 30 percent chance of rain showers. Lows 30 to 38. Highs 42 to 50.
  • Friday Partly cloudy with a 20 percent chance of rain showers. Highs 43 to 48.