Alta Weather Forecast

    • 45
    • 59

    Rain Showers Likely

    • 48
    • 51

    Rain Showers

    • 48
    • 53

    Rain Showers

    • 46
    • 53

    Rain Showers

    • 45
    • 50

    Rain Showers

    • 45
    • 50

    Rain Showers

Today 18 Dec West Slope Northern Sierra Nevada

Areas of fog. Locally dense early in the morning. Mostly sunny. Not as cool. Highs 44 to 59 higher Elevations 52 to 66 lower Elevations. Prevailing south Winds up to 10 Mph with Gusts to around 25 Mph.

Tonight 18 Dec West Slope Northern Sierra Nevada

Mostly clear. Areas of fog. Locally dense through the night. A slight chance of rain Showers after midnight. Lows 29 to 43 higher Elevations. 39 to 49 lower Elevations. Snow level above 8000 feet. Prevailing south Winds up to 10 Mph with Gusts to around 40 Mph. Except south up to 30 Mph over Ridges.

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Alta Temperature Statistics

December Temperature

Emigrant Gap, Blue Canyon Nyack Airport (6.8 miles)

  • Lowest 3 December, 2025

    34 °F

  • Average December

    51.5 °F

  • Highest 10 December, 2025

    68 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (6.8 miles)

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  • Average Low 2020–2025

    46.6 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    60.3 °F
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