Big Island Lake Weather Forecast

    • 48
    • 66

    Increasing Clouds

    • 42
    • 61

    Rain Likely

    • 41
    • 53

    Rain Showers Likely

    • 42
    • 58

    Slight Chance Thunderstorms

    • 44
    • 61

    Mostly Sunny

    • 46
    • 62

    Chance Rain

Today 17 Sep Yosemite NP outside of the valley

Sunny. Highs 63 to 77. Southeast Winds up to 10 Mph shifting to the west in the afternoon.

Tonight 17 Sep Yosemite NP outside of the valley

Mostly cloudy. Lows 43 to 57. Northeast Winds up to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Island Lake Temperature Statistics

September Temperature

MCMWTC BRIDGEPORT (20.5 miles)

  • Lowest 13 September, 2025

    36 °F

  • Average September

    57.5 °F

  • Highest 1 September, 2025

    81 °F

Climate (2020–Present)

MCMWTC BRIDGEPORT (20.5 miles)

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  • Average Low 2020–2025

    29.3 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    60.6 °F
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