Harveston Lake Weather Forecast

    • 61
    • 92

    Mostly Sunny

    • 64
    • 93

    Mostly Sunny

    • 67
    • 96

    Mostly Sunny

    • 68
    • 99

    Hot

    • 67
    • 98

    Hot

    • 67
    • 95

    Mostly Sunny

    • 66
    • 95

    Mostly Sunny

Today 4 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Hazy. Areas of smoke this afternoon. Highs 91 to 98. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon.

Tonight 4 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Hazy this evening. Mostly clear. Lows 59 to 64. Areas of Winds west 10 to 15 Mph this evening becoming light.

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Harveston Lake Temperature Statistics

August Temperature

Murrieta/Temecula French Valley (2.5 miles)

  • Lowest 1 August, 2025

    55.4 °F

  • Average August

    74.3 °F

  • Highest 2 August, 2025

    96.8 °F

Climate (2020–Present)

Murrieta/Temecula French Valley (2.5 miles)

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  • Average Low 2020–2025

    50.6 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    77.8 °F
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