Copper Basin Reservoir Weather Forecast

    • 76
    • 95

    Rain Showers Likely

    • 77
    • 95

    Mostly Sunny

    • 74
    • 98

    Hot

    • 74
    • 99

    Hot

    • 76
    • 100

    Hot

    • 75
    • 98

    Hot

    • 75
    • 98

    Hot

Today 16 Sep San Bernardino County-Upper Colorado River Valley

Mostly sunny. Windy. A 20 percent chance of Thunderstorms in the afternoon. Highs 94 to 97. South Winds 20 to 30 Mph.

Tonight 16 Sep San Bernardino County-Upper Colorado River Valley

Breezy. Mostly cloudy with chance of Showers and slight chance of Thunderstorms in the Evening, then partly cloudy with chance of Showers after midnight. Lows 76 to 79. Southeast Winds 15 to 25 Mph with Gusts to around 40 Mph decreasing to 10 to 15 Mph with Gusts to around 30 Mph after midnight. Chance of precipitation 50 percent.

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Copper Basin Reservoir Temperature Statistics

September Temperature

Havasu City Airport (20.5 miles)

  • Lowest 7 September, 2026

    78.8 °F

  • Average September

    95 °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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