Muscupiabe Weather Forecast

    • 65
    • 88

    Sunny

    • 66
    • 95

    Sunny

    • 68
    • 96

    Mostly Sunny

    • 69
    • 95

    Mostly Sunny

    • 66
    • 92

    Partly Sunny

    • 62
    • 85

    Mostly Sunny

Today 22 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming sunny. Highs 83 to 88. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 22 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 56 to 63. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Muscupiabe Temperature Statistics

September Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 19 September, 2026

    57.2 °F

  • Average September

    74.3 °F

  • Highest 9 September, 2026

    105.8 °F

Climate (2021–2026)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2021–2026

    54.2 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    80.3 °F
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