Merriam Lake Weather Forecast

    • 21
    • 35

    Mostly Sunny

    • 21
    • 33

    Sunny

    • 23
    • 33

    Partly Sunny

    • 21
    • 33

    Partly Sunny

    • 19
    • 32

    Mostly Sunny

    • 19
    • 32

    Mostly Sunny

    • 18
    • 30

    Partly Sunny

Today 15 Jan Upper San Joaquin River

Sunny. Highs 41 to 55. Northeast Winds up to 10 Mph.

Tonight 15 Jan Upper San Joaquin River

Mostly clear. Lows 25 to 37. Northeast Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Merriam Lake Temperature Statistics

January Temperature

Mammoth Yosemite Airport (22.4 miles)

  • Lowest 10 January, 2026

    -2.2 °F

  • Average January

    20.7 °F

  • Highest 3 January, 2026

    39.2 °F

Climate (2021–Present)

Mammoth Yosemite Airport (22.4 miles)

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  • Average Low 2021–2026

    29.6 °F

  • Average 2021–2026

    45.9 °F

  • Average High 2021–2026

    60.7 °F
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