Big Sandy Lake Weather Forecast

    • 59
    • 83

    Chance Thunderstorms

    • 63
    • 84

    Mostly Sunny

    • 65
    • 86

    Chance Thunderstorms

    • 69
    • 85

    Chance Thunderstorms

    • 75
    • 90

    Chance Thunderstorms

    • 68
    • 86

    Thunderstorms Likely

    • 64
    • 83

    Chance Thunderstorms

Today 30 Jun Monroe

Partly sunny with isolated Showers and Thunderstorms. Near steady temperature in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 30 Jun Monroe

Partly cloudy with Showers likely with a chance of Thunderstorms this Evening, then mostly clear after midnight. Lows around 60. West Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sandy Lake Temperature Statistics

June Temperature

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

  • Lowest 1 June, 2025

    34.9 °F

  • Average June

    69.8 °F

  • Highest 21 June, 2025

    95.2 °F

Climate (2020–Present)

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

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  • Average Low 2020–2025

    34.3 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    57.8 °F
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