Jacks Lake Weather Forecast

    • 51
    • 78

    Mostly Sunny

    • 53
    • 79

    Chance Thunderstorms

    • 52
    • 76

    Chance Thunderstorms

    • 50
    • 73

    Chance Thunderstorms

    • 52
    • 76

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

Today 23 Jul Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 81 to 91. Light Winds becoming southwest around 10 Mph in the afternoon.

Tonight 23 Jul Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then clear after midnight. Lows 45 to 55. West Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jacks Lake Temperature Statistics

July Temperature

Alturas (52.2 miles)

  • Lowest 5 July, 2025

    40.6 °F

  • Average July

    71.3 °F

  • Highest 13 July, 2025

    101.6 °F

Climate (2020–Present)

Alturas (52.2 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    64.5 °F
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