San Jacinto Weather Forecast

    • 47
    • 77

    Increasing Clouds

    • 49
    • 66

    Rain Showers

    • 49
    • 63

    Rain Showers

    • 46
    • 62

    Rain Showers

    • 39
    • 59

    Rain Showers

    • 37
    • 60

    Slight Chance Rain Showers

    • 40
    • 63

    Partly Sunny

Today 22 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Areas of fog this morning. Mostly cloudy. Local visibility one quarter mile or less at Times this morning. Highs 72 to 77. Light Winds becoming west to 10 Mph this afternoon.

Tonight 22 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming cloudy. Lows 46 to 49 in wind Sheltered Areas to 49 to 54 in warmer Locations. Light Winds.

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San Jacinto Temperature Statistics

December Temperature

Murrieta/Temecula French Valley (17.4 miles)

  • Lowest 2 December, 2025

    35.6 °F

  • Average December

    57.1 °F

  • Highest 10 December, 2025

    87.8 °F

Climate (2020–Present)

Murrieta/Temecula French Valley (17.4 miles)

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  • Average Low 2020–2025

    50.7 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    77.8 °F
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