Rainbow Bay Weather Forecast

    • 31
    • 43

    Decreasing Clouds

    • 27
    • 36

    Breezy

    • 31
    • 38

    Breezy

    • 35
    • 44

    Sunny

    • 37
    • 48

    Partly Sunny

    • 39
    • 50

    Mostly Sunny

    • 42
    • 53

    Sunny

Today 7 Jan San Bernardino County Mountains

Partly cloudy. Highs 38 to 45 above 6000 feet to 45 to 53 below 6000 feet. Areas of Winds northwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 7 Jan San Bernardino County Mountains

Partly cloudy this evening. Becoming mostly clear. Colder. Lows 19 to 29 above 6000 feet to 29 to 37 below 6000 feet. Areas of Winds west 25 to 35 Mph. Gusts to 50 Mph becoming 55 Mph overnight.

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Rainbow Bay Temperature Statistics

January Temperature

San Bernardino Intl. Airport (11.2 miles)

  • Lowest 5 January, 2026

    46.4 °F

  • Average January

    56 °F

  • Highest 2 January, 2026

    66.2 °F

Climate (2021–Present)

San Bernardino Intl. Airport (11.2 miles)

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  • Average Low 2021–2026

    54.1 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    80.2 °F
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