San Jacinto Weather Forecast

    • 70
    • 100

    Hot

    • 71
    • 101

    Hot

    • 71
    • 102

    Hot

    • 71
    • 103

    Hot

    • 70
    • 101

    Hot

    • 70
    • 101

    Hot

Today 17 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 93 to 100. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 17 Aug San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 64 to 69. Areas of Winds west to 10 Mph in the evening becoming light.

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San Jacinto Temperature Statistics

August Temperature

Murrieta/Temecula French Valley (17.4 miles)

  • Lowest 5 August, 2026

    62.6 °F

  • Average August

    78.6 °F

  • Highest 2 August, 2026

    102.2 °F

Climate (2021–2026)

Murrieta/Temecula French Valley (17.4 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63 °F

  • Average High 2021–2026

    78.1 °F
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