Fairmount Park Weather Forecast

    • 54
    • 65

    Rain

    • 54
    • 65

    Rain Showers

    • 45
    • 61

    Rain Showers Likely

    • 42
    • 61

    Partly Sunny

    • 44
    • 65

    Partly Sunny

    • 46
    • 69

    Mostly Cloudy

Today 24 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Rain and a slight chance of Thunderstorms. Rain may be heavy at Times. Highs 62 to 66. Areas of Winds south 20 to 30 Mph. Gusts to 40 Mph. Becoming 45 Mph this afternoon.

Tonight 24 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Rain and a slight chance of Thunderstorms this Evening, then a chance of Showers overnight. Rain may be heavy at Times this evening. Lows 48 to 53. Areas of Winds southwest 10 to 15 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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Fairmount Park Temperature Statistics

December Temperature

Riverside Municipal Airport (3.7 miles)

  • Lowest 2 December, 2025

    42.1 °F

  • Average December

    60.1 °F

  • Highest 10 December, 2025

    88 °F

Climate (2020–Present)

Riverside Municipal Airport (3.7 miles)

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  • Average Low 2020–2025

    54.6 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79.8 °F
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