Muscupiabe Weather Forecast

    • 55
    • 81

    Mostly Sunny

    • 57
    • 87

    Sunny

    • 59
    • 89

    Mostly Sunny

    • 59
    • 88

    Mostly Sunny

    • 58
    • 88

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

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

Partly cloudy this morning. Becoming mostly sunny. Warmer. Highs 76 to 82. Areas of Winds north 10 to 20 Mph. Gusts to 40 Mph. Becoming 35 Mph this afternoon.

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

Partly cloudy in the evening. Becoming mostly clear. Patchy fog overnight. Lows around 50 in wind Sheltered Areas to 49 to 55 in warmer Locations. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph becoming north overnight.

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  • Temperature Real-Time

Muscupiabe Temperature Statistics

May Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 6 May, 2026

    49.1 °F

  • Average May

    64.2 °F

  • Highest 11 May, 2026

    98.6 °F

Climate (2021–Present)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.3 °F

  • Average High 2021–2026

    80.5 °F
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