Lake Riverside Weather Forecast

    • 44
    • 73

    Mostly Cloudy

    • 41
    • 68

    Increasing Clouds

    • 40
    • 62

    Rain Showers

    • 35
    • 53

    Rain Showers

    • 34
    • 54

    Chance Rain Showers

    • 38
    • 64

    Mostly Sunny

    • 41
    • 70

    Partly Sunny

Today 9 Apr Riverside County Mountains

Partly cloudy. Highs 67 to 77. Areas of Winds west 20 to 30 Mph. Gusts to 35 Mph. Becoming 45 Mph this afternoon.

Tonight 9 Apr Riverside County Mountains

Mostly cloudy this evening. Becoming partly cloudy. Lows 41 to 51. Areas of Winds west 15 to 25 Mph with Gusts to 40 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

    44.1 °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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