San Jacinto Weather Forecast

    • 47
    • 79

    Mostly Sunny

    • 46
    • 78

    Sunny

    • 45
    • 78

    Mostly Sunny

    • 47
    • 75

    Mostly Cloudy

    • 43
    • 72

    Partly Sunny

    • 44
    • 68

    Partly Sunny

    • 46
    • 68

    Partly Sunny

Today 18 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming mostly sunny. Highs 76 to 81. Areas of Winds east 10 to 15 Mph with Gusts to 25 Mph becoming north this afternoon.

Tonight 18 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 45 to 48 in wind Sheltered Areas to 48 to 55 in warmer Locations. Light Winds.

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San Jacinto Temperature Statistics

January Temperature

Murrieta/Temecula French Valley (17.4 miles)

  • Lowest 9 January, 2026

    33.8 °F

  • Average January

    54.1 °F

  • Highest 14 January, 2026

    82.4 °F

Climate (2021–Present)

Murrieta/Temecula French Valley (17.4 miles)

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  • Average Low 2021–2026

    50.8 °F

  • Average 2021–2026

    62.8 °F

  • Average High 2021–2026

    77.8 °F
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