Johnsville Weather Forecast

    • 63
    • 88

    Increasing Clouds

    • 59
    • 84

    Chance Thunderstorms

    • 58
    • 84

    Chance Rain Showers

    • 57
    • 80

    Chance Rain Showers

    • 55
    • 79

    Chance Rain Showers

    • 53
    • 77

    Mostly Sunny

Today 23 Aug Lassen-Eastern Plumas-Eastern Sierra Counties

Partly cloudy. Slight chance of Showers and Thunderstorms in the afternoon. Highs 91 to 101. Light Winds becoming southwest around 10 Mph in the afternoon.

Tonight 23 Aug Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Slight chance of Showers and Thunderstorms in the Evening, then slight chance of Showers after midnight. Lows 55 to 65. Southwest Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsville Temperature Statistics

August Temperature

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

  • Lowest 17 August, 2025

    57 °F

  • Average August

    69.6 °F

  • Highest 11 August, 2025

    86.6 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    53.5 °F

  • Average High 2020–2025

    60.5 °F
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