Lake Riverside Weather Forecast

    • 61
    • 90

    Mostly Sunny

    • 61
    • 91

    Sunny

    • 61
    • 92

    Mostly Sunny

    • 59
    • 89

    Mostly Sunny

    • 52
    • 81

    Mostly Sunny

    • 46
    • 74

    Chance Rain Showers

Today 6 Oct Riverside County Mountains

Mostly sunny. Highs 79 to 89. Light Winds becoming west 10 Mph this afternoon.

Tonight 6 Oct Riverside County Mountains

Clear. Lows 53 to 63. Light Winds.

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  • Temperature Real-Time

Lake Riverside Temperature Statistics

October Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 1 October, 2026

    37.4 °F

  • Average October

    64.3 °F

  • Highest 2 October, 2026

    75.7 °F

Climate (2021–2026)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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