San Jacinto Weather Forecast

    • 34
    • 55

    Becoming Sunny

    • 42
    • 65

    Partly Sunny

    • 46
    • 73

    Mostly Sunny

    • 51
    • 78

    Partly Sunny

    • 52
    • 78

    Partly Sunny

    • 52
    • 77

    Partly Sunny

    • 54
    • 80

    Partly Sunny

Today 20 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming mostly sunny. Patchy dense fog and frost in Colder. Wind Sheltered Locations this morning. Highs 52 to 58. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 20 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Patchy frost in Colder. Wind Sheltered Locations overnight. Lows around 33 in wind Sheltered Areas to 34 to 40 in warmer Locations. Light Winds becoming east to 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Jacinto Temperature Statistics

February Temperature

Murrieta/Temecula French Valley (17.4 miles)

  • Lowest 18 February, 2026

    41 °F

  • Average February

    56.2 °F

  • Highest 3 February, 2026

    84.2 °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

    62.9 °F

  • Average High 2021–2026

    77.9 °F
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