Lake Riverside Weather Forecast

    • 34
    • 54

    Rain Showers Likely

    • 34
    • 50

    Chance Rain Showers

    • 36
    • 63

    Mostly Sunny

    • 40
    • 67

    Partly Sunny

    • 38
    • 64

    Partly Sunny

    • 40
    • 67

    Sunny

    • 44
    • 73

    Mostly Sunny

Today 12 Apr Riverside County Mountains

Partly cloudy this morning. Becoming mostly cloudy. A chance of Showers. A slight chance of Thunderstorms this afternoon. Highs 48 to 58. Snow level 7000 feet. Becoming 7500 feet this afternoon. Areas of Winds west 20 to 30 Mph with Gusts to 45 Mph. Chance of measurable precipitation 50 percent.

Tonight 12 Apr Riverside County Mountains

Mostly cloudy. A chance of Showers this Evening, then a slight chance of Showers overnight. Colder. Lows 29 to 39. Little or no snow accumulation. Snow level 7000 feet. Becoming 5500 feet. Areas of Winds west 20 to 30 Mph. Gusts to 45 Mph becoming 40 Mph overnight. Chance of measurable precipitation 40 percent.

Graph Plots Open in Graphs

  • 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

    45 °F

  • Highest 7 April, 2026

    64.4 °F

Climate (2021–Present)

Big Bear City Airport (51.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    60.4 °F
Get WillyWeather+ to remove ads