Sunnymead Park Weather Forecast

    • 64
    • 84

    Sunny

    • 68
    • 95

    Sunny

    • 68
    • 94

    Mostly Sunny

    • 67
    • 92

    Mostly Sunny

    • 65
    • 92

    Partly Sunny

    • 61
    • 85

    Mostly Sunny

Today 22 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 85 to 90.

Tonight 22 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 59 to 65. Areas of Winds west to 10 Mph this evening becoming light.

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Sunnymead Park Temperature Statistics

September Temperature

Riverside / March Air Force Base (2.5 miles)

  • Lowest 19 September, 2026

    55.4 °F

  • Average September

    75.8 °F

  • Highest 9 September, 2026

    105.3 °F

Climate (2021–2026)

Riverside / March Air Force Base (2.5 miles)

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  • Average Low 2021–2026

    52.7 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    78.8 °F
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