Adults Sports Park Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 56
    • 82

    Partly Sunny

    • 54
    • 80

    Partly Sunny

    • 53
    • 75

    Partly Sunny

Today 15 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Patchy dense fog this morning. Mostly sunny. Local visibility one quarter mile or less at Times this morning. Highs 77 to 82. Areas of Winds north to 10 Mph becoming northwest with Gusts to 25 Mph this afternoon.

Tonight 15 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 44 to 48 in wind Sheltered Areas to 49 to 59 in warmer Locations. Areas of Winds north 10 to 15 Mph with Gusts to 25 Mph becoming east overnight.

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Adults Sports Park Temperature Statistics

December Temperature

Ontario International Airport (3.7 miles)

  • Lowest 2 December, 2025

    46 °F

  • Average December

    61.4 °F

  • Highest 10 December, 2025

    84.9 °F

Climate (2020–Present)

Ontario International Airport (3.7 miles)

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  • Average Low 2020–2025

    55.5 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    78.9 °F
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