Lake Riverside Weather Forecast

    • 43
    • 69

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

    • 46
    • 78

    Partly Sunny

    • 40
    • 70

    Partly Sunny

    • 38
    • 59

    Partly Sunny

    • 40
    • 58

    Partly Sunny

Today 30 Apr Riverside County Mountains

Mostly sunny. Highs 65 to 75. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 30 Mph in the afternoon.

Tonight 30 Apr Riverside County Mountains

Mostly clear. Lows 42 to 52. 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

April Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 18 April, 2026

    21.2 °F

  • Average April

    42.8 °F

  • Highest 7 April, 2026

    64.4 °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

    60.4 °F
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