Diamond Valley Lake Weather Forecast

    • 54
    • 85

    Mostly Sunny

    • 55
    • 86

    Mostly Sunny

    • 57
    • 89

    Sunny

    • 59
    • 91

    Sunny

    • 60
    • 94

    Sunny

    • 56
    • 88

    Mostly Sunny

Today 7 May San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 83 to 89. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 30 Mph this afternoon.

Tonight 7 May San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 50 to 53 in wind Sheltered Areas to 52 to 60 in warmer Locations. Areas of Winds southwest 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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  • Temperature Real-Time

Diamond Valley Lake Temperature Statistics

May Temperature

Murrieta/Temecula French Valley (9.3 miles)

  • Lowest 1 May, 2026

    51.8 °F

  • Average May

    60.6 °F

  • Highest 1 May, 2026

    80.6 °F

Climate (2021–Present)

Murrieta/Temecula French Valley (9.3 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    78.2 °F
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