Lake Riverside Weather Forecast

    • 41
    • 63

    Mostly Sunny

    • 50
    • 77

    Sunny

    • 53
    • 83

    Sunny

    • 54
    • 85

    Partly Sunny

    • 52
    • 84

    Mostly Sunny

    • 55
    • 88

    Sunny

Today 10 Mar Riverside County Mountains

Mostly sunny. Warmer. Highs 61 to 71. Areas of Winds west 10 to 20 Mph with Gusts to 30 Mph.

Tonight 10 Mar Riverside County Mountains

Mostly clear. Lows 38 to 48. Areas of Winds north 10 to 15 Mph. Gusts to 30 Mph in the evening.

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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

    39.7 °F

  • Highest 1 March, 2026

    60.8 °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

    60.1 °F
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