Big Bear Lake Weather Forecast

    • 60
    • 83

    Chance Thunderstorms

    • 57
    • 76

    Chance Thunderstorms

    • 57
    • 74

    Chance Thunderstorms

    • 58
    • 71

    Chance Thunderstorms

    • 57
    • 74

    Chance Rain Showers

    • 51
    • 74

    Chance Rain Showers

Today 17 Sep Burnett

Patchy fog in the morning. Mostly sunny with a slight chance of Showers and Thunderstorms. Hot with Highs in the lower 80s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 17 Sep Burnett

Mostly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the lower 60s. East Winds around 5 Mph. Chance of rain 40 percent.

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Big Bear Lake Temperature Statistics

September Temperature

Siren, Burnett County Airport (16.8 miles)

  • Lowest 7 September, 2025

    33.8 °F

  • Average September

    58.8 °F

  • Highest 13 September, 2025

    84 °F

Climate (2020–Present)

Siren, Burnett County Airport (16.8 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    43.8 °F

  • Average High 2020–2025

    53.6 °F
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