Greenhorn Weather Forecast

    • 45
    • 78

    Sunny

    • 44
    • 79

    Sunny

    • 43
    • 73

    Sunny

    • 44
    • 72

    Sunny

    • 47
    • 80

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

Today 14 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Sunny, warmer. Highs 69 to 79. East Winds up to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 14 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Clear. Lows 44 to 54. Northeast Winds up to 10 Mph.

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Greenhorn Temperature Statistics

September Temperature

Emigrant Gap, Blue Canyon Nyack Airport (42.9 miles)

  • Lowest 1 September, 2026

    43.6 °F

  • Average September

    60 °F

  • Highest 9 September, 2026

    84.7 °F

Climate (2021–2026)

Emigrant Gap, Blue Canyon Nyack Airport (42.9 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    60.4 °F
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