Lake Riverside Weather Forecast

    • 65
    • 95

    Slight Chance Thunderstorms

    • 63
    • 91

    Partly Sunny

    • 59
    • 87

    Chance Rain Showers

    • 56
    • 85

    Mostly Sunny

    • 54
    • 83

    Partly Sunny

    • 55
    • 84

    Partly Sunny

Today 9 Aug Riverside County Mountains

Mostly sunny this Morning, then partly cloudy with a slight chance of Showers and Thunderstorms this afternoon. Highs 88 to 98. Areas of Winds east 10 Mph becoming southwest this afternoon. Chance of measurable precipitation 20 percent.

Tonight 9 Aug Riverside County Mountains

Partly cloudy. Lows 60 to 70. Areas of Winds west 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

August Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 1 August, 2026

    52.7 °F

  • Average August

    73.3 °F

  • Highest 1 August, 2026

    88 °F

Climate (2021–2026)

Big Bear City Airport (51.6 miles)

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

  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    48.9 °F

  • Average High 2021–2026

    60.3 °F
Get WillyWeather+ to remove ads