Johnsville Weather Forecast

    • 50
    • 70

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 46
    • 68

    Sunny

    • 46
    • 69

    Sunny

    • 42
    • 65

    Partly Sunny

    • 38
    • 54

    Chance Rain Showers

    • 40
    • 58

    Slight Chance Rain Showers

Today 21 May Lassen-Eastern Plumas-Eastern Sierra Counties

Sunny. Highs 74 to 84. Light Winds becoming north around 10 Mph in the afternoon.

Tonight 21 May Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy in the evening then clearing. Lows 42 to 52. Northwest Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsville Temperature Statistics

May Temperature

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

  • Lowest 4 May, 2026

    37.7 °F

  • Average May

    56.6 °F

  • Highest 11 May, 2026

    77.6 °F

Climate (2021–Present)

Emigrant Gap, Blue Canyon Nyack Airport (32.9 miles)

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  • Average Low 2021–2026

    47 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    60.7 °F
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