Greenhorn Weather Forecast

    • 44
    • 80

    Mostly Sunny

    • 41
    • 75

    Sunny

    • 45
    • 82

    Sunny

    • 46
    • 85

    Sunny

    • 47
    • 84

    Sunny

    • 46
    • 81

    Mostly Sunny

Today 13 Sep Western Plumas County/Lassen Park

Sunny. Highs 62 to 77 higher Elevations. 68 to 83 lower Elevations. Light Winds becoming southwest up to 10 Mph in the afternoon.

Tonight 13 Sep Western Plumas County/Lassen Park

Mostly clear. Lows 44 to 59. Prevailing southwest Winds up to 10 Mph in the evening becoming light.

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Greenhorn Temperature Statistics

September Temperature

Emigrant Gap, Blue Canyon Nyack Airport (42.9 miles)

  • Lowest 10 September, 2025

    46.9 °F

  • Average September

    64.5 °F

  • Highest 2 September, 2025

    84 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (42.9 miles)

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  • Average Low 2020–2025

    46.7 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    60.5 °F
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