County Line Lake Weather Forecast

    • 54
    • 71

    Decreasing Clouds

    • 60
    • 80

    Partly Sunny

    • 55
    • 77

    Chance Thunderstorms

    • 49
    • 65

    Mostly Cloudy

    • 46
    • 59

    Chance Rain Showers

    • 43
    • 62

    Mostly Sunny

Today 20 Aug Ontonagon

Patchy fog in the morning. Mostly cloudy in the Morning, then clearing. Highs around 73. North Winds 5 to 10 Mph.

Tonight 20 Aug Ontonagon

Mostly cloudy. Areas of fog. Near steady temperature around 60. Light north Winds.

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County Line Lake Temperature Statistics

August Temperature

Land O' Lakes, Kings Land O' Lakes Airport (12.4 miles)

  • Lowest 1 August, 2025

    39.4 °F

  • Average August

    66.8 °F

  • Highest 7 August, 2025

    87.1 °F

Climate (2020–Present)

Land O' Lakes, Kings Land O' Lakes Airport (12.4 miles)

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  • Average Low 2020–2025

    30.7 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    52.5 °F
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