Cypress Park Weather Forecast

    • 52
    • 78

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 52
    • 82

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 52
    • 74

    Partly Sunny

    • 50
    • 70

    Partly Sunny

Today 17 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 75 to 80. Areas of Winds north 20 to 30 Mph. Gusts to 50 Mph. Becoming 45 Mph this afternoon.

Tonight 17 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 44 to 47 in wind Sheltered Areas to 46 to 53 in warmer Locations. Areas of Winds west 10 to 15 Mph with Gusts to 30 Mph becoming east with Gusts to 25 Mph overnight.

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Cypress Park Temperature Statistics

April Temperature

Ontario International Airport (5 miles)

  • Lowest 13 April, 2026

    49.6 °F

  • Average April

    67 °F

  • Highest 4 April, 2026

    89.7 °F

Climate (2021–Present)

Ontario International Airport (5 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    67 °F

  • Average High 2021–2026

    79.4 °F
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