Johnsville Weather Forecast

    • 64
    • 89

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 61
    • 87

    Sunny

    • 59
    • 84

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

Today 7 Aug Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 93 to 103. Light Winds becoming west around 10 Mph in the afternoon.

Tonight 7 Aug Lassen-Eastern Plumas-Eastern Sierra Counties

Clear. Haze and patchy smoke after midnight. Lows 55 to 65. West Winds around 10 Mph in the evening becoming light.

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Johnsville Temperature Statistics

August Temperature

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

  • Lowest 2 August, 2026

    67.6 °F

  • Average August

    76.5 °F

  • Highest 1 August, 2026

    86.6 °F

Climate (2021–2026)

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    60.5 °F
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