Lake Tomah Weather Forecast

    • 56
    • 79

    Areas Smoke

    • 57
    • 81

    Areas Smoke

    • 60
    • 83

    Mostly Sunny

    • 65
    • 86

    Slight Chance Thunderstorms

    • 68
    • 88

    Slight Chance Thunderstorms

    • 70
    • 90

    Slight Chance Thunderstorms

    • 68
    • 89

    Chance Rain Showers

Today 3 Aug Monroe

Mostly sunny. Areas of smoke. Highs in the upper 70s. Light Winds.

Tonight 3 Aug Monroe

Partly cloudy. Areas of smoke. Lows in the upper 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Tomah Temperature Statistics

August Temperature

Sparta, Sparta / Fort McCoy Airport (10.6 miles)

  • Lowest 1 August, 2025

    44.6 °F

  • Average August

    61.8 °F

  • Highest 1 August, 2025

    78.8 °F

Climate (2020–Present)

Sparta, Sparta / Fort McCoy Airport (10.6 miles)

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  • Average Low 2020–2025

    34.4 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    57.8 °F
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