Copper Basin Reservoir Weather Forecast

    • 64
    • 81

    Chance Rain Showers

    • 66
    • 88

    Sunny

    • 71
    • 91

    Sunny

    • 73
    • 93

    Sunny

    • 73
    • 95

    Sunny

    • 75
    • 97

    Hot

Today 29 Sep San Bernardino County-Upper Colorado River Valley

Mostly sunny. Chance of rain Showers and slight chance of Thunderstorms in the Morning, then slight chance of Thunderstorms in the afternoon. Highs 81 to 84. Northwest Winds 10 to 15 Mph shifting to the north 15 to 25 Mph in the afternoon. Chance of precipitation 50 percent.

Tonight 29 Sep San Bernardino County-Upper Colorado River Valley

Mostly clear. Lows 64 to 67. North Winds up to 10 Mph. Gusts up to 25 Mph in the evening.

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Copper Basin Reservoir Temperature Statistics

September Temperature

Havasu City Airport (20.5 miles)

  • Lowest 20 September, 2026

    73.4 °F

  • Average September

    92.6 °F

  • Highest 10 September, 2026

    113 °F

Climate (2021–2026)

Havasu City Airport (20.5 miles)

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  • Average Low 2021–2026

    66.1 °F

  • Average 2021–2026

    77.2 °F

  • Average High 2021–2026

    87.8 °F
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