San Jacinto Reservoir Weather Forecast

    • 47
    • 61

    Rain Showers

    • 46
    • 66

    Partly Sunny

    • 51
    • 76

    Sunny

    • 53
    • 79

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 52
    • 82

    Partly Sunny

Today 14 Oct San Bernardino and Riverside County Valleys-The Inland Empire

Showers and a slight chance of Thunderstorms. Highs 58 to 63. Areas of Winds south 10 to 20 Mph with Gusts to 30 Mph.

Tonight 14 Oct San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. A chance of Showers. Lows 43 to 48. Areas of Winds southwest 10 Mph in the evening becoming light. Chance of measurable precipitation 40 percent.

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San Jacinto Reservoir Temperature Statistics

October Temperature

Riverside / March Air Force Base (16.2 miles)

  • Lowest 7 October, 2025

    50.7 °F

  • Average October

    67.8 °F

  • Highest 10 October, 2025

    91.9 °F

Climate (2020–Present)

Riverside / March Air Force Base (16.2 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    65.3 °F

  • Average High 2020–2025

    78.4 °F
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