Lake Riverside Weather Forecast

    • 44
    • 71

    Partly Cloudy

    • 46
    • 76

    Mostly Sunny

    • 48
    • 80

    Mostly Sunny

    • 51
    • 83

    Mostly Sunny

    • 54
    • 85

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

    • 56
    • 88

    Sunny

Today 30 Jun Riverside County Mountains

Mostly sunny. Highs 68 to 78. Areas of Winds west 10 to 15 Mph with Gusts to 30 Mph.

Tonight 30 Jun Riverside County Mountains

Partly cloudy this evening. Becoming mostly clear. Patchy dense fog this evening. Areas of dense fog overnight. Lows 44 to 54. 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

    63.7 °F

  • Highest 23 June, 2026

    83.8 °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

    60.3 °F
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