San Jacinto Weather Forecast

    • 61
    • 88

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

    • 66
    • 97

    Hot

    • 67
    • 99

    Hot

    • 69
    • 98

    Hot

    • 68
    • 97

    Hot

Today 29 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 85 to 91. Areas of Winds northwest 10 to 20 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon.

Tonight 29 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 58 to 63. Areas of Winds west 10 to 15 Mph with Gusts to 30 Mph becoming southeast overnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Jacinto Temperature Statistics

September Temperature

Murrieta/Temecula French Valley (17.4 miles)

  • Lowest 3 September, 2026

    55.6 °F

  • Average September

    74.4 °F

  • Highest 9 September, 2026

    105.3 °F

Climate (2021–2026)

Murrieta/Temecula French Valley (17.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    78.1 °F
Get WillyWeather+ to remove ads