Sierra City Weather Forecast

    • 57
    • 91

    Chance Rain Showers

    • 55
    • 73

    Chance Rain Showers

    • 54
    • 79

    Chance Rain Showers

    • 57
    • 84

    Sunny

    • 60
    • 89

    Mostly Sunny

    • 56
    • 86

    Chance Rain Showers

Today 18 Sep West Slope Northern Sierra Nevada

Mostly cloudy. At higher Elevations, a slight chance of rain Showers late in the afternoon. Highs 66 to 81 higher Elevations. 77 to 89 lower Elevations. Prevailing east Winds up to 10 Mph shifting to the southwest in the afternoon.

Tonight 18 Sep West Slope Northern Sierra Nevada

Cloudy with a chance of rain Showers. Cooler. Lows 42 to 57 higher Elevations. 51 to 63 lower Elevations. Light Winds.

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Sierra City Temperature Statistics

September Temperature

Emigrant Gap, Blue Canyon Nyack Airport (20.5 miles)

  • Lowest 10 September, 2025

    46.9 °F

  • Average September

    63.6 °F

  • Highest 2 September, 2025

    84 °F

Climate (2020–Present)

Emigrant Gap, Blue Canyon Nyack Airport (20.5 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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