Weather WorldAlta Sierra, CA 7-Day Night Weather Forecast
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Alta Sierra, CA Weather Forecast
Alta Sierra, CA Weather Forecast Date: 201 AM PDT Sun Sep 27 2026
The area/counties/county of: N. Motherlode 1000, including the city of Auburn, Grass Valley, Colfax, Nevada City.or toggle through each period.
Today... Mostly cloudy. Highs 70 to 76. Light winds.
Tonight... Mostly clear. Lows 47 to 53. Light winds.
Monday... Sunny. Highs 74 to 82. Light winds becoming west up to 10 mph in the afternoon.
Monday Night... Clear. Lows 54 to 60. North winds up to 10 mph shifting to the northeast after midnight.
Tuesday... Sunny, warmer. Highs 83 to 91. Northeast winds around 10 mph in the morning becoming light.
Tuesday Night... Clear. Lows 56 to 62.
Wednesday... Sunny. Highs 84 to 90.
Wednesday Night... Clear. Lows 56 to 62. Highs 84 to 90.
Thursday... Clear. Lows 56 to 62. Highs 84 to 90.
Thursday Night... Mostly clear. Lows 56 to 63. Highs 82 to 90.
Friday... Mostly clear. Lows 56 to 63. Highs 82 to 90.
POP = Probability of Precipitation
Alta Sierra Radar Loop
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