Mesa Lake Weather Forecast

    • 38
    • 55

    Chance Rain Showers

    • 36
    • 55

    Mostly Sunny

    • 35
    • 54

    Mostly Sunny

    • 32
    • 51

    Mostly Sunny

    • 29
    • 48

    Partly Sunny

    • 28
    • 45

    Slight Chance Thunderstorms

Today 5 Sep Upper San Joaquin River

Sunny. A 20 percent chance of Thunderstorms in the afternoon. Highs 58 to 74. Southwest Winds up to 10 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 5 Sep Upper San Joaquin River

Mostly clear. Lows 40 to 52. Southwest Winds up to 10 Mph shifting to the south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mesa Lake Temperature Statistics

September Temperature

Bishop, Bishop Airport (21.1 miles)

  • Lowest 1 September, 2025

    55 °F

  • Average September

    77.9 °F

  • Highest 1 September, 2025

    97 °F

Climate (2020–Present)

Bishop, Bishop Airport (21.1 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    76.6 °F
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