Arnold, CA…The detailed forecasts from the National Weather Service office in Sacramento for the West Slope Northern Sierra Nevada and the Mother Lode are below…Today Sunny. Highs 52 to 67 higher elevations…65 to 75 lower elevations. Prevailing south winds up to 15 mph. Tonight, Mostly clear. Lows 29 to 44 higher elevations…43 to 51 lower elevations. Prevailing southwest winds 5 to 15 mph shifting to the southeast after midnight. Over ridges, prevailing southwest winds 15 to 25 mph.

Saturday
Mostly sunny. Highs 52 to 67 higher elevations… 63 to 77 lower elevations. Prevailing south winds up to 15 mph.

Saturday Night
Mostly clear. Lows 30 to 45 higher elevations… 43 to 51 lower elevations. Prevailing southeast winds up to 10 mph…except south 10 to 25 mph over ridges.

Sunday
Mostly sunny. Highs 50 to 65 higher elevations…59 to 71 lower elevations. Prevailing southeast winds up to 10 mph shifting to the southwest in the afternoon. Gusts up to 30 mph. Over ridges…prevailing southwest winds 15 to 30 mph.

Sunday Night
Mostly clear. Colder. Lows 31 to 46.

Monday
Partly cloudy with a slight chance of rain and snow showers. Highs 41 to 56.

Monday Night Through Thursday
Mostly clear. Lows 28 to 43. Highs 45 to 60.

Detailed forecast for Motherlode
Today
Sunny. Highs 71 to 79. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon.
Tonight
Mostly clear. Lows 47 to 53. Prevailing southwest winds up to 10 mph shifting to the east after midnight.

Saturday
Mostly sunny. Highs 68 to 78. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon.
Saturday Night
Mostly clear. Lows 43 to 51. Prevailing southwest winds up to 10 mph shifting to the east after midnight.

Sunday
Mostly sunny. Highs 64 to 72. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon.

Sunday Night
Mostly clear. Lows 40 to 48.

Monday
Partly cloudy with a slight chance of rain showers. Highs 54 to 66.

Monday Night
Mostly clear. Lows 38 to 46.

Tuesday
Sunny. Highs 60 to 70.

Tuesday Night Through Thursday
Mostly clear. Lows 39 to 47. Highs 60 to 72.