Grand Avenue Park Weather Forecast

    • 44
    • 59

    Rain Showers

    • 40
    • 57

    Mostly Sunny

    • 42
    • 61

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 48
    • 65

    Chance Rain Showers

Today 26 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Showers likely this Morning, then Showers and a slight chance of Thunderstorms this afternoon. Locally heavy rainfall possible this afternoon. Highs 57 to 62. Areas of Winds south 10 to 15 Mph with Gusts to 30 Mph.

Tonight 26 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy with Showers likely and a slight chance of Thunderstorms in the Evening, then partly cloudy with a chance of Showers overnight. Colder. Lows 39 to 44. Areas of Winds west to 10 Mph. Chance of measurable precipitation 70 percent.

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Grand Avenue Park Temperature Statistics

December Temperature

Brackett Field Airport (6.8 miles)

  • Lowest 5 December, 2025

    42.8 °F

  • Average December

    63.2 °F

  • Highest 10 December, 2025

    86 °F

Climate (2020–Present)

Brackett Field Airport (6.8 miles)

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  • Average Low 2020–2025

    55.5 °F

  • Average 2020–2025

    67.6 °F

  • Average High 2020–2025

    75.6 °F
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