Yucaipa Weather Forecast

    • 70
    • 94

    Mostly Sunny

    • 67
    • 92

    Rain Showers Likely

    • 65
    • 83

    Rain Showers Likely

    • 62
    • 80

    Chance Thunderstorms

    • 63
    • 84

    Slight Chance Thunderstorms

    • 65
    • 86

    Slight Chance Thunderstorms

Today 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 95 to 101. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 16 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear in the evening. Becoming partly cloudy. Lows 68 to 72. Areas of Winds west 10 to 15 Mph in the evening becoming light.

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Yucaipa Temperature Statistics

September Temperature

Big Bear City Airport (18.6 miles)

  • Lowest 12 September, 2025

    32 °F

  • Average September

    57.5 °F

  • Highest 1 September, 2025

    78.8 °F

Climate (2020–Present)

Big Bear City Airport (18.6 miles)

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  • Average Low 2020–2025

    34.1 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
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