Sandy Lake Weather Forecast

    • 47
    • 80

    Mostly Sunny

    • 46
    • 78

    Mostly Sunny

    • 54
    • 80

    Partly Sunny

    • 62
    • 83

    Chance Rain Showers

    • 58
    • 84

    Mostly Sunny

    • 56
    • 83

    Partly Sunny

Today 22 Aug Monroe

Mostly sunny. Near steady temperature in the upper 70s. Northwest Winds 10 to 15 Mph.

Tonight 22 Aug Monroe

Mostly clear. Patchy fog after midnight. Lows in the upper 40s. Northwest Winds 5 to 10 Mph.

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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

    69.7 °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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