Miller Park Weather Forecast

    • 52
    • 75

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 59
    • 88

    Partly Sunny

    • 56
    • 82

    Partly Sunny

Today 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 72 to 77. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 44 to 47 in wind Sheltered Areas to 45 to 52 in warmer Locations. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Miller Park Temperature Statistics

April Temperature

Ontario International Airport (8.7 miles)

  • Lowest 13 April, 2026

    49.6 °F

  • Average April

    67.3 °F

  • Highest 4 April, 2026

    89.7 °F

Climate (2021–Present)

Ontario International Airport (8.7 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    67.1 °F

  • Average High 2021–2026

    79.4 °F
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