Bill Martin Park Weather Forecast

    • 65
    • 92

    Mostly Sunny

    • 62
    • 89

    Mostly Sunny

    • 62
    • 89

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 61
    • 91

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

Today 12 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming mostly sunny. Highs 89 to 96. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 12 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 62 to 65. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Bill Martin Park Temperature Statistics

June Temperature

Ontario International Airport (8.7 miles)

  • Lowest 1 June, 2026

    58.6 °F

  • Average June

    73.4 °F

  • Highest 10 June, 2026

    91 °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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