Boulder Lake Weather Forecast

    • 50
    • 73

    Mostly Cloudy

    • 50
    • 63

    Rain Showers Likely

    • 49
    • 62

    Rain Showers Likely

    • 44
    • 66

    Mostly Cloudy

    • 42
    • 60

    Mostly Cloudy

    • 43
    • 62

    Partly Sunny

    • 46
    • 66

    Partly Sunny

Today 17 Sep Northern Oconto County

Partly cloudy. Temperatures in the lower to mid 70s. Light and variable wind.

Tonight 17 Sep Northern Oconto County

Partly cloudy in the evening then becoming mostly cloudy. Lows around 50. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Boulder Lake Temperature Statistics

September Temperature

Langlade County Airport (23 miles)

  • Lowest 14 September, 2026

    39 °F

  • Average September

    68 °F

  • Highest 1 September, 2026

    92.1 °F

Climate (2021–2026)

Langlade County Airport (23 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    52.2 °F
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