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Milder but cloudy with rain/snow Saturday night and rain on Sunday

The daily forecast from Idaho's largest, most experienced team of meteorologists.

BOISE, Idaho — High pressure over the region is flattening as a weak low pressure trough moves into the Pacific Northwest.  It will bring clouds across Idaho with a chance of some mountain snow showers.  In the lower valleys, mostly cloudy skies and breezy in some areas, with highs a few degrees milder.  For Boise, expect a high near 40 degrees.  The AIR STAGNATION ADVISORY over southwest Idaho and eastern Oregon will expire at 1 pm.  

A weak high pressure ridge will cross the area on Saturday, but there will still be a good deal of cloud cover in a southwesterly flow ahead of another approaching weather system on the coast.  Temperatures will warm up a few more degrees into the mid to upper 40's in the valleys, with partly to mostly cloudy skies and southerly winds 10-20 mph.  It will help to scour out the valley temperature inversions. Boise will be near 45 degrees.

Snow showers will develop Saturday evening at elevations above 4000', with a rain/snow mix possible overnight in the lower valleys.  There could be some very light accumulations of about 1/2" of wet snow in the Treasure and Magic Valleys through Sunday morning.  Then as the trough moves through on Sunday, morning rain/snow will change to rain in the Treasure Valley.  Precipitation totals will mainly be under a tenth of an inch.  Mountain areas will end up with 1-4" of snow through Sunday evening.

As the trough pulls away on Monday, snow levels will drop to the valleys, but there will be little precipitation left for more than a light snow shower or some flurries, with dry conditions through early next week.  Temperatures will remain in the low to mid 40's, near average for Boise, through early next week, cooling to the upper 30's with a slight chance of snow showers on Wednesday.

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KTVB Weather Team

  • Idaho's Chief Meteorologist Rick Lantz began his broadcasting career in 1975 working in both radio and television in Weiser, Caldwell, Nampa, and Boise. He has been bringing you the weather each weeknight for nearly 40 years on KTVB.
  • Meteorologist Bri Eggers joined the KTVB weather team in the fall of 2018. She became a meteorologist while working here in the Treasure Valley, and has earned her National Weather Association seal of approval. After spending four years in Boston, forecasting blizzards, nor’easters and humid summer days, Bri is excited to dive back into mountain meteorology. 
  • Meteorologist Jim Duthie has been a part of KTVB's weather team since August of 2008, but it's not his first experience with Idaho weather. Jim began forecasting on television in the Treasure Valley in 1998. Prior to coming to Idaho, he had extensive weather forecasting experience both in the private sector and in broadcasting.
  • Meteorologist Larry Gebert sadly passed away in April 2022.

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