Sierra City Weather Forecast

    • 55
    • 80

    Sunny

    • 60
    • 87

    Mostly Sunny

    • 64
    • 93

    Partly Sunny

    • 61
    • 91

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

Today 7 Sep Sierra Nevada of Yuba-Sierra-Nevada-Placer Counties Between 3000-5000 ft Including Interstate 80

Sunny, warmer. Highs 69 to 79. East Winds up to 10 Mph in the morning becoming light.

Tonight 7 Sep Sierra Nevada of Yuba-Sierra-Nevada-Placer Counties Between 3000-5000 ft Including Interstate 80

Clear. Lows 49 to 59. Northeast Winds up to 10 Mph.

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Sierra City Temperature Statistics

September Temperature

Emigrant Gap, Blue Canyon Nyack Airport (20.5 miles)

  • Lowest 1 September, 2026

    43.6 °F

  • Average September

    51.3 °F

  • Highest 1 September, 2026

    61.6 °F

Climate (2021–2026)

Emigrant Gap, Blue Canyon Nyack Airport (20.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    60.5 °F
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