Sandy Lake Weather Forecast

    • 63
    • 82

    Chance Thunderstorms

    • 58
    • 82

    Partly Sunny

    • 52
    • 82

    Mostly Sunny

    • 59
    • 82

    Partly Sunny

    • 63
    • 83

    Chance Thunderstorms

    • 63
    • 86

    Chance Thunderstorms

    • 59
    • 86

    Chance Rain Showers

Today 25 Aug Monroe

Mostly sunny. Near steady temperature in the upper 70s. Southwest Winds 5 to 10 Mph.

Tonight 25 Aug Monroe

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandy Lake Temperature Statistics

August Temperature

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

  • Lowest 20 August, 2026

    43.7 °F

  • Average August

    69.2 °F

  • Highest 11 August, 2026

    86.5 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

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  • Average Low 2021–2026

    35.1 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
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