Lake Riverside Weather Forecast

    • 39
    • 71

    Mostly Sunny

    • 39
    • 67

    Partly Sunny

    • 37
    • 60

    Partly Sunny

    • 40
    • 68

    Partly Sunny

    • 41
    • 67

    Partly Sunny

    • 40
    • 63

    Partly Sunny

Today 20 Apr Riverside County Mountains

Sunny. Highs 66 to 76. Areas of Winds south 10 Mph becoming west with Gusts to 25 Mph in the afternoon.

Tonight 20 Apr Riverside County Mountains

Partly cloudy in the evening. Becoming mostly clear. Lows 38 to 48. Areas of Winds west 10 to 15 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

April Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 5 April, 2026

    23 °F

  • Average April

    42.7 °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

    60.3 °F
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