Mostly cloudy. Scattered snow showers in the evening. Chance of snow 40 percent. Lows 19 to 27. Southwest winds up to 10 mph.
Friday
Increasing clouds. A chance of snow showers...mainly in the afternoon. Chance of snow 30 percent. Highs 35 to 43. Light winds in the morning...becoming south 10 to 15 mph in the afternoon.
Snow showers in the evening...then a chance of snow showers after midnight. Chance of snow 80 percent. Snow accumulation of 1 to 2 inches. Lows 19 to 28. West winds 10 to 15 mph.
Saturday
Decreasing clouds. A 20 percent chance of snow showers in the morning. Highs 31 to 39. Northwest winds 10 to 15 mph with gusts to around 25 mph.
... First measurable snowfall in the Treasure valley expected Friday evening into the overnight hours...
A winter storm moving in from the northwest will spread snowfall across southeast Oregon Friday afternoon... and across southwest Idaho Friday evening and overnight. The system is expected to be relatively dry... producing only 2 to 5 inches of snow in the mountains... and around 1 inch in the valleys.
However... it is important to note that this will be the first measurable snow on the roadways of the heavily-populated Treasure valley. An inch of snow is enough to cause travel difficulties if traffic volume and Road conditions are conducive. Travelers should allow for extra time as the roads may become slick.