Lake Riverside Weather Forecast

    • 51
    • 82

    Mostly Sunny

    • 54
    • 87

    Mostly Sunny

    • 54
    • 93

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 47
    • 77

    Mostly Sunny

Today 9 May Riverside County Mountains

Mostly sunny. Highs 77 to 87. Areas of Winds west 10 to 20 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon.

Tonight 9 May Riverside County Mountains

Mostly clear. Lows 51 to 61. Areas of Winds west 10 to 20 Mph. Gusts to 35 Mph. Becoming 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

May Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 6 May, 2026

    27.7 °F

  • Average May

    46.3 °F

  • Highest 2 May, 2026

    65.5 °F

Climate (2021–Present)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    49 °F

  • Average High 2021–2026

    60.3 °F
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