Lake Riverside Weather Forecast

    • 56
    • 74

    Breezy

    • 58
    • 74

    Windy

    • 53
    • 70

    Breezy

    • 52
    • 73

    Sunny

    • 50
    • 72

    Mostly Sunny

    • 46
    • 66

    Chance Rain Showers

Today 15 Oct Riverside County Mountains

Sunny. Highs 63 to 73. Areas of Winds northeast 25 to 35 Mph with Gusts to 55 Mph.

Tonight 15 Oct Riverside County Mountains

Mostly clear. Lows 46 to 56. Areas of Winds northeast 25 to 35 Mph with Gusts to 50 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

October Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 13 October, 2026

    27.5 °F

  • Average October

    56.3 °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

    48.9 °F

  • Average High 2021–2026

    60.4 °F
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