Big Bear Lake Weather Forecast

    • 61
    • 78

    Mostly Sunny

    • 59
    • 75

    Mostly Sunny

    • 58
    • 74

    Mostly Sunny

    • 56
    • 69

    Mostly Sunny

    • 56
    • 68

    Slight Chance Thunderstorms

    • 55
    • 67

    Slight Chance Thunderstorms

Today 10 Aug Northeastern Trinity

Sunny. Patchy smoke in the morning. Highs 88 to 103. Northeast wind around 10 Mph shifting to the south in the afternoon.

Tonight 10 Aug Northeastern Trinity

Mostly clear. Patchy smoke. Lows 57 to 67. South wind around 10 Mph shifting to the northeast overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Bear Lake Temperature Statistics

August Temperature

Trinity Center (14.3 miles)

  • Lowest 2 August, 2026

    55.4 °F

  • Average August

    80.9 °F

  • Highest 7 August, 2026

    104 °F

Climate (2021–2026)

Trinity Center (14.3 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    55.2 °F

  • Average High 2021–2026

    68.4 °F
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