Arnold, CA…Cooler temps and a chance of showers heading our way this weekend. The latest from the National Weather Service is below…Detailed forecast for West Slope Northern Sierra Nevada. Today Mostly sunny. Haze and patchy smoke. Highs 65 to 80 higher elevations…78 to 88 lower elevations. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon. Tonight Haze and patchy smoke in the evening. Mostly clear. Lows 45 to 60 higher elevations…50 to 65 lower elevations. Prevailing southwest winds up to 10 mph shifting to the east after midnight.

Thursday Mostly cloudy. Highs 61 to 76 higher elevations… 71 to 81 lower elevations. Prevailing southeast winds up to 10 mph shifting to the southwest in the afternoon.

Thursday Night Partly cloudy. Colder. Lows 37 to 52 higher elevations…46 to 59 lower elevations. Prevailing southwest winds up to 10 mph shifting to the east after midnight.

Friday Mostly sunny. Highs 57 to 72 higher elevations…67 to 75 lower elevations. Prevailing southeast winds up to 10 mph shifting to the southwest in the afternoon.

Friday Night Partly cloudy. Lows 39 to 54.

Saturday Mostly cloudy with a slight chance of rain showers. Highs 49 to 64.

Saturday Night Mostly cloudy with a chance of rain showers. Colder. Lows 35 to 50.

Sunday And Sunday Night Mostly clear. Highs 52 to 67. Lows 36 to 51.

Columbus Day Through Tuesday Mostly clear. Highs 61 to 76. Lows 38 to 53.

Detailed forecast for Motherlode. Today Mostly sunny. Highs 83 to 91. Prevailing east winds up to 10 mph shifting to the southwest in the afternoon.

Tonight Mostly clear in the evening then becoming mostly cloudy. Cooler. Lows 50 to 65. Prevailing west winds up to 10 mph in the evening becoming light.

Thursday Mostly cloudy. Highs 73 to 81. Light winds becoming southwest up to 10 mph in the afternoon.

Thursday Night Mostly clear. Lows 48 to 58. Light winds.

Friday Mostly sunny. Highs 69 to 77. Light winds becoming southwest up to 10 mph in the afternoon.

Friday Night Mostly cloudy. Lows 49 to 61.

Saturday Mostly cloudy with a slight chance of rain showers. Highs 61 to 73.

Saturday Night Mostly cloudy with a slight chance of rain showers. Lows 46 to 58.

Sunday And Sunday Night Mostly clear. Highs 65 to 75. Lows 46 to 58.

Columbus Day Through Tuesday Mostly clear. Highs 72 to 83. Lows 47 to 60.