Mostly cloudy. A slight chance of rain in the late morning and afternoon. Highs 58 to 64. Light winds becoming north 5 to 15 mph in the afternoon.
Wednesday Night
Mostly cloudy with a chance of rain early in the evening...then rain showers likely in the late evening and overnight. Lows 42 to 50. Northwest winds up to 10 mph.
Thursday
Mostly cloudy with a chance of rain showers early in the morning...then mostly cloudy with a slight chance of rain showers in the late morning and afternoon. Highs 56 to 64. Northwest winds 10 to 20 mph.
... Snow expected in the mountains Wednesday into Thursday...
A cold low pressure system over the Gulf of Alaska will approach California Wednesday and Wednesday night. As the cold front moves through interior northern California Wednesday into early Thursday... moderate to occasionally heavy precipitation is possible over the mountains.
In the mountains... rain and snow will begin in the Lassen park area and Shasta County mountains by Wednesday afternoon... and shift into the west slopes of the Sierra Wednesday evening. Occasional heavy showers are possible near the cold front as it moves south across the region Wednesday afternoon into early Thursday morning. Snow levels could drop down to around 3500 feet in the Shasta County mountains and down to around 5000 feet over the Sierra by Thursday morning behind the cold front. Showers are expected to linger over the Sierra during the day Thursday. Snowfall accumulations of several inches are possible above 6000 feet between Wednesday and Thursday. Southwest wind gusts up to 50 mph are also possible over the higher terrain with this system. The snowfall and the gusty winds will bring winter driving conditions to the mountains which may impact travel over the higher mountain passes on Wednesday and Thursday.
If your plans call for travel into the Sierra or Lassen park area Wednesday afternoon into Thursday... be prepared for winter driving conditions. Monitor the latest National Weather Service forecasts and statements for updates about this storm.