Arnold, CA…The latest forecasts from the National Weather Service in Sacramento about storm systems that will bring rain and snow to our area later this week. Detailed forecast for West Slope Northern Sierra Nevada. Tonight, Mostly cloudy in the evening then clearing. Colder. Lows 11 to 26 higher elevations…23 to 35 lower elevations. Prevailing southwest winds 5 to 15 mph with gusts to around 30 mph in the evening becoming light. Tuesday, Sunny. Highs 33 to 48 higher elevations…43 to 53 lower elevations. Prevailing northeast winds up to 10 mph in the morning becoming light.

Tuesday Night
Mostly clear. Lows 18 to 33 higher elevations… 27 to 39 lower elevations. Prevailing southeast winds up to 10 mph.

Wednesday
Partly cloudy in the morning then clearing. Highs 31 to 46 higher elevations…42 to 54 lower elevations. Prevailing southeast winds up to 10 mph shifting to the southwest in the afternoon. Gusts up to 30 mph.

Wednesday Night
Mostly clear in the evening, then mostly cloudy with a chance of rain and snow showers after midnight. Lows 19 to 33 higher elevations…30 to 40 lower elevations. Snow level 4500 feet. Prevailing south winds 5 to 15 mph…except southwest 10 to 50 mph over ridges. Gusts up to 35 mph increasing to 50 mph after midnight. Over ridges, gusts up to 70 mph after midnight.

Thursday
Heavy rain and snow showers. Breezy. Heavy snow accumulations possible. Highs 28 to 43.

Thursday Night
Mostly cloudy with a chance of heavy rain and snow showers likely. Breezy, colder. Heavy snow accumulations possible. Lows 13 to 28.

Friday
Partly cloudy. Highs 27 to 42.

Friday Night
Mostly cloudy with a slight chance of snow showers. Lows 17 to 32.

Saturday
Mostly cloudy with a chance of rain and snow showers. Highs 29 to 44.

Saturday Night
Heavy rain and snow showers likely. Moderate snow accumulations possible. Lows 19 to 34.

Sunday
Mostly cloudy with a chance of heavy rain and snow showers. Highs 26 to 41.

Sunday Night
Mostly cloudy with a chance of snow showers. Colder. Lows 15 to 30.

Monday
Partly cloudy with a slight chance of snow showers. Highs 28 to 43.

Detailed forecast for
Motherlode
Tonight
Mostly clear. Areas of frost late in the night. Lows 29 to 37. Prevailing northwest winds up to 10 mph in the evening becoming light.
Tuesday
Areas of frost in the morning. Sunny. Highs 48 to 56. Light winds becoming west up to 10 mph in the afternoon.
Tuesday Night
Mostly clear. Lows 32 to 40. Light winds.
Wednesday
Partly cloudy in the morning then clearing. Highs 47 to 57. Light winds becoming south up to 10 mph in the afternoon.
Wednesday Night
Mostly clear in the evening, then mostly cloudy with a chance of rain showers after midnight. Lows 35 to 45. Prevailing southeast winds up to 10 mph.
Thursday
Rain showers. Highs 40 to 50.
Thursday Night
Mostly cloudy with a chance of rain and snow showers. Colder. Lows 26 to 36.
Friday
Partly cloudy. Highs 41 to 51.
Friday Night
Partly cloudy with a slight chance of rain showers. Lows 29 to 39.
Saturday
Mostly cloudy with a chance of rain showers. Highs 41 to 51.
Saturday Night
Rain showers likely. Lows 32 to 42.
Sunday
Mostly cloudy with a chance of rain showers. Highs 40 to 50.
Sunday Night
Mostly cloudy with a chance of rain and snow showers. Lows 28 to 38.
Monday
Partly cloudy. Highs 42 to 50.