Boulder Lake Weather Forecast

    • 58
    • 85

    Chance Thunderstorms

    • 53
    • 76

    Mostly Cloudy

    • 54
    • 69

    Mostly Cloudy

    • 55
    • 71

    Chance Rain Showers

    • 56
    • 75

    Chance Rain Showers

    • 54
    • 76

    Chance Rain Showers

    • 51
    • 71

    Partly Sunny

Today 17 Sep Northern Oconto County

Partly cloudy with a slight chance of Showers and Thunderstorms. Temperatures in the mid to upper 80s. Southwest wind around 5 Mph.

Tonight 17 Sep Northern Oconto County

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Light and variable wind. Chance of rain 40 percent.

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Boulder Lake Temperature Statistics

September Temperature

Langlade County Airport (23 miles)

  • Lowest 4 September, 2025

    35.8 °F

  • Average September

    56.8 °F

  • Highest 15 September, 2025

    79.9 °F

Climate (2020–Present)

Langlade County Airport (23 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    42.7 °F

  • Average High 2020–2025

    52 °F
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