Bill Martin Park Weather Forecast

    • 57
    • 78

    Sunny

    • 55
    • 74

    Mostly Sunny

    • 57
    • 72

    Mostly Cloudy

    • 57
    • 70

    Mostly Cloudy

    • 57
    • 66

    Chance Rain Showers

    • 56
    • 64

    Rain Showers Likely

    • 53
    • 62

    Rain Showers Likely

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

Partly cloudy with a slight chance of Showers. Highs 64 to 70.

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

Clear. Lows 49 to 52 in wind Sheltered Areas to 51 to 56 in warmer Locations. Areas of Winds west to 10 Mph this evening becoming light.

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Bill Martin Park Temperature Statistics

October Temperature

Ontario International Airport (8.7 miles)

  • Lowest 14 October, 2026

    52.6 °F

  • Average October

    76.6 °F

  • Highest 5 October, 2026

    104.6 °F

Climate (2021–2026)

Ontario International Airport (8.7 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    79.4 °F
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