Lake Riverside Weather Forecast

    • 42
    • 59

    Areas Fog

    • 44
    • 63

    Mostly Sunny

    • 48
    • 75

    Sunny

    • 52
    • 82

    Sunny

    • 52
    • 82

    Mostly Sunny

    • 52
    • 82

    Mostly Sunny

Today 28 May Riverside County Mountains

Partly cloudy this morning. Becoming mostly sunny. Areas of fog this morning. Highs 55 to 65. Areas of Winds west 10 to 20 Mph. Gusts to 30 Mph. Becoming 35 Mph this afternoon.

Tonight 28 May Riverside County Mountains

Partly cloudy. Patchy fog in the evening. Areas of fog overnight. Lows 34 to 44. Areas of Winds west 15 to 25 Mph. Gusts to 40 Mph. Becoming 45 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

May Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 6 May, 2026

    27.7 °F

  • Average May

    52.9 °F

  • Highest 10 May, 2026

    77.9 °F

Climate (2021–Present)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    49 °F

  • Average High 2021–2026

    60.3 °F
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