Butt Valley Reservoir Weather Forecast

    • 55
    • 86

    Increasing Clouds

    • 57
    • 85

    Mostly Cloudy

    • 54
    • 74

    Chance Rain Showers

    • 52
    • 76

    Chance Rain Showers

    • 53
    • 80

    Sunny

    • 56
    • 83

    Mostly Sunny

Today 17 Sep Western Plumas County/Lassen Park

Sunny. Highs 70 to 85 higher Elevations. 76 to 91 lower Elevations. Light Winds.

Tonight 17 Sep Western Plumas County/Lassen Park

Mostly clear. Lows 52 to 67. Light Winds.

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Butt Valley Reservoir Temperature Statistics

September Temperature

Chico Municipal Airport (42.9 miles)

  • Lowest 5 September, 2025

    62.6 °F

  • Average September

    74 °F

  • Highest 1 September, 2025

    102.2 °F

Climate (2020–Present)

Chico Municipal Airport (42.9 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    61.2 °F

  • Average High 2020–2025

    75.4 °F
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