Grinnell Lake Weather Forecast

    • 38
    • 56

    Increasing Clouds

    • 37
    • 57

    Mostly Sunny

    • 39
    • 60

    Mostly Sunny

    • 37
    • 59

    Mostly Sunny

    • 33
    • 55

    Breezy

    • 32
    • 51

    Partly Sunny

Today 2 Jun Upper San Joaquin River

Warmer, sunny. Highs 55 to 73. Southeast Winds up to 5 Mph shifting to the southwest in the afternoon.

Tonight 2 Jun Upper San Joaquin River

Partly cloudy in the evening then becoming mostly cloudy. Lows 40 to 52. West Winds up to 10 Mph shifting to the northeast after midnight.

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Grinnell Lake Temperature Statistics

June Temperature

Mammoth Yosemite Airport (10.6 miles)

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  • Average June

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Climate (2021–Present)

Mammoth Yosemite Airport (10.6 miles)

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  • Average Low 2021–2026

    29.6 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    60.7 °F
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