Lake Riverside Weather Forecast

    • 50
    • 82

    Sunny

    • 54
    • 83

    Partly Sunny

    • 54
    • 85

    Mostly Cloudy

    • 47
    • 84

    Mostly Sunny

    • 45
    • 77

    Mostly Cloudy

    • 42
    • 69

    Chance Rain Showers

    • 39
    • 64

    Slight Chance Rain Showers

Today 26 Mar Riverside County Mountains

Mostly sunny. Highs 76 to 86. Areas of Winds west 10 to 15 Mph. Gusts to 30 Mph this morning.

Tonight 26 Mar Riverside County Mountains

Mostly clear. Lows 50 to 60. Areas of Winds west 10 Mph this evening becoming light.

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Lake Riverside Temperature Statistics

March Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 4 March, 2026

    23 °F

  • Average March

    48.5 °F

  • Highest 20 March, 2026

    77 °F

Climate (2021–Present)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    60.3 °F
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