East Highland Reservoir Weather Forecast

    • 53
    • 79

    Sunny

    • 52
    • 81

    Sunny

    • 49
    • 80

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 52
    • 73

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

Today 9 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 78 to 84. Areas of Winds north 10 to 15 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon.

Tonight 9 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Clear, Colder. Lows 37 to 41 in wind Sheltered Areas to 45 to 55 in warmer Locations. Areas of Winds east 10 to 15 Mph with Gusts to 30 Mph.

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East Highland Reservoir Temperature Statistics

December Temperature

San Bernardino Intl. Airport (5 miles)

  • Lowest 4 December, 2025

    40.3 °F

  • Average December

    52.3 °F

  • Highest 7 December, 2025

    80.6 °F

Climate (2020–Present)

San Bernardino Intl. Airport (5 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    80.2 °F
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