Grand Avenue Park Weather Forecast

    • 54
    • 76

    Increasing Clouds

    • 53
    • 76

    Partly Sunny

    • 52
    • 72

    Mostly Cloudy

    • 52
    • 68

    Partly Sunny

    • 52
    • 67

    Partly Sunny

    • 52
    • 69

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 23 May San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy this morning. Becoming sunny. Highs 78 to 85. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 23 May San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 50 to 55. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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Grand Avenue Park Temperature Statistics

May Temperature

Brackett Field Airport (6.8 miles)

  • Lowest 6 May, 2026

    51.8 °F

  • Average May

    68.8 °F

  • Highest 11 May, 2026

    89.6 °F

Climate (2021–Present)

Brackett Field Airport (6.8 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    68.1 °F

  • Average High 2021–2026

    76 °F
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