Big Bear Lake Weather Forecast

    • 49
    • 64

    Sunny

    • 52
    • 67

    Sunny

    • 54
    • 69

    Mostly Sunny

    • 54
    • 67

    Mostly Sunny

    • 56
    • 68

    Mostly Sunny

    • 55
    • 68

    Mostly Sunny

Today 29 Sep Northeastern Trinity

Sunny. Highs 76 to 91. Northwest wind around 10 Mph.

Tonight 29 Sep Northeastern Trinity

Clear. Lows 46 to 56. North wind around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Bear Lake Temperature Statistics

September Temperature

Trinity Center (14.3 miles)

  • Lowest 4 September, 2026

    42.8 °F

  • Average September

    64.5 °F

  • Highest 9 September, 2026

    95 °F

Climate (2021–2026)

Trinity Center (14.3 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    69 °F
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