Copper Basin Reservoir Weather Forecast

    • 75
    • 98

    Hot

    • 80
    • 96

    Mostly Cloudy

    • 78
    • 95

    Mostly Cloudy

    • 80
    • 99

    Hot

    • 82
    • 103

    Hot

    • 82
    • 101

    Slight Chance Thunderstorms

    • 80
    • 98

    Slight Chance Thunderstorms

Today 4 Sep San Bernardino County-Upper Colorado River Valley

Sunny. Highs around 100. South Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 4 Sep San Bernardino County-Upper Colorado River Valley

Mostly clear. Lows 75 to 78. South Winds 5 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Copper Basin Reservoir Temperature Statistics

September Temperature

Havasu City Airport (20.5 miles)

  • Lowest 2 September, 2026

    84.2 °F

  • Average September

    92.6 °F

  • Highest 1 September, 2026

    102.2 °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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