Lake John Weather Forecast

    • 55
    • 79

    Chance Thunderstorms

    • 46
    • 80

    Mostly Sunny

    • 52
    • 65

    Rain Showers

    • 56
    • 81

    Rain Showers

    • 40
    • 69

    Rain Showers Likely

    • 36
    • 57

    Partly Sunny

    • 41
    • 63

    Partly Sunny

Today 15 May Northern Oconto County

Warmer. Sunny. Highs around 80. Southwest wind 10 to 15 Mph.

Tonight 15 May Northern Oconto County

Mostly clear in the evening then becoming mostly cloudy. A chance of Showers and Thunderstorms. Lows in the middle 50s. Southwest wind 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake John Temperature Statistics

May Temperature

Langlade County Airport (32.3 miles)

  • Lowest 2 May, 2026

    24.3 °F

  • Average May

    43.7 °F

  • Highest 12 May, 2026

    68.7 °F

Climate (2021–Present)

Langlade County Airport (32.3 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    42.8 °F

  • Average High 2021–2026

    52 °F
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