Johnson Lake Weather Forecast

    • 50
    • 59

    Rain Showers Likely

    • 49
    • 60

    Rain Showers Likely

    • 42
    • 66

    Mostly Cloudy

    • 38
    • 61

    Mostly Cloudy

    • 39
    • 62

    Mostly Sunny

    • 43
    • 64

    Partly Sunny

    • 45
    • 67

    Partly Sunny

Today 18 Sep Price

Showers likely. Near steady temperature in the upper 50s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 18 Sep Price

Showers Likely, mainly in the evening. Patchy fog. Lows in the upper 40s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson Lake Temperature Statistics

September Temperature

Tomahawk Regional Airport (18.6 miles)

  • Lowest 14 September, 2026

    34.3 °F

  • Average September

    68 °F

  • Highest 1 September, 2026

    93.4 °F

Climate (2021–2026)

Tomahawk Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    31.8 °F

  • Average 2021–2026

    43.7 °F

  • Average High 2021–2026

    54.4 °F
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