Muscupiabe Weather Forecast

    • 55
    • 84

    Mostly Sunny

    • 52
    • 80

    Mostly Sunny

    • 53
    • 77

    Partly Sunny

    • 53
    • 77

    Patchy Fog

    • 51
    • 77

    Mostly Cloudy

    • 51
    • 72

    Rain Likely

Today 18 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 81 to 85. Areas of Winds east to 10 Mph becoming west 10 Mph this afternoon.

Tonight 18 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows around 50 in wind Sheltered Areas to 52 to 59 in warmer Locations. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Muscupiabe Temperature Statistics

December Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 4 December, 2025

    40.3 °F

  • Average December

    58.2 °F

  • Highest 10 December, 2025

    87.8 °F

Climate (2020–Present)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    80.3 °F
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