Perris Reservoir Weather Forecast

    • 49
    • 78

    Mostly Sunny

    • 48
    • 78

    Partly Sunny

    • 50
    • 77

    Mostly Sunny

    • 47
    • 77

    Mostly Sunny

    • 47
    • 73

    Partly Sunny

    • 45
    • 69

    Partly Sunny

Today 17 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy in the morning. Becoming mostly sunny. Highs 76 to 81. Areas of Winds north 10 to 20 Mph becoming east in the afternoon. Gusts to 35 Mph.

Tonight 17 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear in the evening. Becoming partly cloudy. Lows 44 to 48 in wind Sheltered Areas to 49 to 54 in warmer Locations. Areas of Winds east 10 to 20 Mph. Gusts to 35 Mph. Becoming 30 Mph overnight.

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Perris Reservoir Temperature Statistics

January Temperature

Riverside / March Air Force Base (5 miles)

  • Lowest 9 January, 2026

    40.1 °F

  • Average January

    57.1 °F

  • Highest 14 January, 2026

    79.9 °F

Climate (2021–Present)

Riverside / March Air Force Base (5 miles)

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  • Average Low 2021–2026

    52.4 °F

  • Average 2021–2026

    65.2 °F

  • Average High 2021–2026

    78.4 °F
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