Silva Flat Reservoir Weather Forecast

    • 44
    • 61

    Slight Chance Rain Showers

    • 44
    • 60

    Rain Showers Likely

    • 46
    • 60

    Chance Rain Showers

    • 48
    • 66

    Mostly Sunny

    • 48
    • 70

    Chance Rain Showers

    • 44
    • 64

    Chance Rain Showers

Today 9 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy. Slight chance of Showers in the afternoon. Highs 65 to 75. Southwest Winds 10 to 15 Mph.

Tonight 9 Sep Lassen-Eastern Plumas-Eastern Sierra Counties

Mostly cloudy in the evening then becoming partly cloudy. Slight chance of Showers. Lows 37 to 47. West Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Silva Flat Reservoir Temperature Statistics

September Temperature

Alturas (40.4 miles)

  • Lowest 7 September, 2025

    46.9 °F

  • Average September

    73.4 °F

  • Highest 1 September, 2025

    91 °F

Climate (2020–Present)

Alturas (40.4 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.5 °F
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