Lake Riverside Weather Forecast

    • 60
    • 89

    Mostly Sunny

    • 56
    • 90

    Mostly Sunny

    • 50
    • 85

    Sunny

    • 48
    • 79

    Sunny

    • 46
    • 79

    Sunny

    • 46
    • 78

    Sunny

    • 47
    • 79

    Sunny

Today 15 Jun Riverside County Mountains

Mostly sunny. Highs 83 to 93. Areas of Winds west 10 to 15 Mph. Gusts to 30 Mph this afternoon.

Tonight 15 Jun Riverside County Mountains

Mostly clear. Lows 58 to 68. Areas of Winds west 10 to 15 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

June Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 8 June, 2026

    33.6 °F

  • Average June

    62.7 °F

  • Highest 11 June, 2026

    81.9 °F

Climate (2021–Present)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    49 °F

  • Average High 2021–2026

    60.3 °F
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