Copper Basin Reservoir Weather Forecast

    • 74
    • 96

    Mostly Sunny

    • 78
    • 98

    Hot

    • 73
    • 93

    Rain Showers Likely

    • 65
    • 84

    Rain Showers Likely

    • 66
    • 86

    Slight Chance Thunderstorms

    • 69
    • 91

    Sunny

    • 72
    • 94

    Mostly Sunny

Today 25 Sep San Bernardino County-Upper Colorado River Valley

Sunny. Highs 96 to 99. South Winds up to 10 Mph.

Tonight 25 Sep San Bernardino County-Upper Colorado River Valley

Mostly clear. Lows 74 to 77. Southeast Winds up to 10 Mph.

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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

    93 °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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