• A storm system moving through the Pacific Northwest will bring widespread showers and mountain snow across parts of the western U.S. into Wednesday. Moderate to heavy rain is expected along coastal areas from Oregon into central California, with accumulating snow along the higher elevations of the Cascades, northern Rockies and Sierra Nevada. Windy conditions will begin across the Southwest.

• Today: Partly sunny. Highs 40 to 45. North winds 10 to 20 mph.
• Tonight: Breezy...colder...cloudy. A chance of light snow in the evening...then light snow likely after midnight. Little or no snow accumulation. Lows 10 to 15. North winds 20 to 25 mph. Chance of snow 70 percent.
• Thursday: Colder. Mostly cloudy. A 40 percent chance of light snow in the morning. Highs in the lower 20s. North winds 10 to 20 mph.
• Thursday Night: Mostly cloudy in the evening then clearing. Lows 5 to 10 above. North winds 5 to 10 mph shifting to the west after midnight.
• Friday: Mostly sunny. Highs in the upper 20s. West winds 5 to 15 mph.
• Friday Night: Partly cloudy. Lows zero to 5 above.
• Saturday: Colder. Mostly sunny. Highs around 15.
• Saturday Night And Sunday: Not as cold. Partly cloudy. Lows 5 to 10 above. Highs in the lower 30s.
• Sunday Night: Not as cold. Partly cloudy. Lows in the lower 20s.
• Monday: Mostly sunny. Highs in the mid 30s. Temperature steady or slowly falling in the afternoon.
• Monday Night And Tuesday: Partly cloudy. Lows 15 to 20. Highs in the upper 20s.