Glen Helen Regional Park Weather Forecast

    • 60
    • 91

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

    • 56
    • 77

    Partly Sunny

    • 57
    • 82

    Partly Sunny

    • 57
    • 80

    Patchy Fog

    • 55
    • 78

    Partly Sunny

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

Mostly sunny. Highs 90 to 96. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

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

Mostly clear. Lows 53 to 60. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Glen Helen Regional Park Temperature Statistics

May Temperature

San Bernardino Intl. Airport (11.8 miles)

  • Lowest 4 May, 2025

    50 °F

  • Average May

    62.9 °F

  • Highest 10 May, 2025

    102.2 °F

Climate (2020–Present)

San Bernardino Intl. Airport (11.8 miles)

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  • Average Low 2020–2025

    54.2 °F

  • Average 2020–2025

    63.3 °F

  • Average High 2020–2025

    80.6 °F
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