Lake Riverside Weather Forecast

    • 41
    • 63

    Increasing Clouds

    • 41
    • 67

    Decreasing Clouds

    • 44
    • 69

    Sunny

    • 47
    • 72

    Mostly Sunny

    • 46
    • 70

    Partly Sunny

    • 43
    • 69

    Partly Sunny

    • 40
    • 65

    Partly Sunny

Today 27 Jan Riverside County Mountains

Sunny. Not as cool. Highs 54 to 64. Areas of Winds southeast 10 to 15 Mph. Gusts to 25 Mph this morning.

Tonight 27 Jan Riverside County Mountains

Partly cloudy. Lows 36 to 45. Light Winds.

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  • Temperature Real-Time

Lake Riverside Temperature Statistics

January Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 25 January, 2026

    15.8 °F

  • Average January

    37.2 °F

  • Highest 18 January, 2026

    60.8 °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 °F

  • Average High 2021–2026

    60.1 °F
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