Lake Riverside Weather Forecast

    • 39
    • 55

    Windy

    • 40
    • 60

    Windy

    • 42
    • 63

    Breezy

    • 45
    • 67

    Sunny

    • 48
    • 71

    Sunny

    • 46
    • 71

    Mostly Sunny

Today 10 Jan Riverside County Mountains

Sunny. Not as cool. Highs 46 to 56. Areas of Winds east 20 to 30 Mph with Gusts to 50 Mph.

Tonight 10 Jan Riverside County Mountains

Clear. Lows 31 to 41. Areas of Winds east 25 to 35 Mph. Gusts to 45 Mph. Becoming 55 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

January Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 6 January, 2026

    23 °F

  • Average January

    35.4 °F

  • Highest 2 January, 2026

    46.4 °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 °F

  • Average High 2021–2026

    60 °F
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