Yosemite Valley Weather Forecast

    • 63
    • 95

    Increasing Clouds

    • 66
    • 99

    Hot

    • 67
    • 100

    Slight Chance Thunderstorms

    • 65
    • 97

    Chance Rain Showers

    • 63
    • 93

    Chance Rain Showers

    • 61
    • 92

    Chance Rain Showers

Today 20 Aug Yosemite Valley

Warmer, sunny. Highs 80 to 94. South Winds up to 10 Mph shifting to the southwest in the afternoon.

Tonight 20 Aug Yosemite Valley

Partly cloudy. Lows 61 to 69. Northeast Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Yosemite Valley Temperature Statistics

August Temperature

Mammoth Yosemite Airport (41.6 miles)

  • Lowest 5 August, 2025

    39.2 °F

  • Average August

    66.7 °F

  • Highest 10 August, 2025

    87.8 °F

Climate (2020–Present)

Mammoth Yosemite Airport (41.6 miles)

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  • Average Low 2020–2025

    29.7 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    61.1 °F
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