Grinnell Lake Weather Forecast

    • 14
    • 26

    Chance Snow

    • 12
    • 26

    Partly Sunny

    • 13
    • 24

    Snow Likely

    • 15
    • 23

    Slight Chance Snow

    • 16
    • 30

    Mostly Sunny

    • 19
    • 35

    Mostly Sunny

    • 18
    • 35

    Partly Sunny

Today 18 Nov Upper San Joaquin River

Partly sunny. Chance of snow through the day. Chance of rain early in the Afternoon, then slight chance of rain late in the afternoon. Highs 26 to 40. Northeast Winds 5 to 10 Mph with Gusts to around 25 Mph. Chance of precipitation 50 percent.

Tonight 18 Nov Upper San Joaquin River

Mostly cloudy early in the evening then becoming partly cloudy. Chance of snow early in the Evening, then slight chance of snow in the late evening and overnight. Lows 16 to 26. Northeast Winds up to 10 Mph. Chance of snow 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grinnell Lake Temperature Statistics

November Temperature

Mammoth Yosemite Airport (10.6 miles)

  • Lowest 1 November, 2025

    23 °F

  • Average November

    44.3 °F

  • Highest 1 November, 2025

    69.8 °F

Climate (2020–Present)

Mammoth Yosemite Airport (10.6 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    46 °F

  • Average High 2020–2025

    60.9 °F
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