Lake Riverside Weather Forecast

    • 68
    • 92

    Mostly Sunny

    • 72
    • 98

    Hot

    • 68
    • 99

    Hot

    • 67
    • 97

    Hot

    • 68
    • 97

    Hot

    • 65
    • 95

    Mostly Sunny

Today 22 Jul Riverside County Mountains

Mostly sunny. Warmer. Highs 86 to 96. Areas of Winds west 10 to 15 Mph. Gusts to 25 Mph in the afternoon.

Tonight 22 Jul Riverside County Mountains

Clear. Lows 61 to 71. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph. Becoming to 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Riverside Temperature Statistics

July Temperature

Big Bear City Airport (51.6 miles)

  • Lowest 1 July, 2026

    38.5 °F

  • Average July

    66.5 °F

  • Highest 9 July, 2026

    87.6 °F

Climate (2021–2026)

Big Bear City Airport (51.6 miles)

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  • Average Low 2021–2026

    33.7 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.3 °F
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