Lake John Weather Forecast

    • 54
    • 67

    Rain Showers

    • 43
    • 72

    Partly Sunny

    • 51
    • 67

    Chance Rain Showers

    • 50
    • 71

    Chance Rain Showers

    • 54
    • 66

    Rain Showers

    • 52
    • 69

    Chance Rain Showers

    • 48
    • 65

    Chance Rain Showers

Today 14 Sep Northern Oconto County

Cloudy with a chance of Showers. Temperatures in the mid to upper 60s. South wind 10 to 15 Mph.

Tonight 14 Sep Northern Oconto County

Warmer. Showers and a chance of Thunderstorms. Locally heavy rainfall possible in the evening. Lows in the middle 50s. South wind 10 to 15 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake John Temperature Statistics

September Temperature

Langlade County Airport (32.3 miles)

  • Lowest 10 September, 2026

    50.2 °F

  • Average September

    70.3 °F

  • Highest 1 September, 2026

    92.1 °F

Climate (2021–2026)

Langlade County Airport (32.3 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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