Sandy Lake Weather Forecast

    • 42
    • 63

    Mostly Sunny

    • 44
    • 65

    Partly Sunny

    • 46
    • 66

    Mostly Cloudy

    • 45
    • 68

    Mostly Cloudy

    • 48
    • 66

    Mostly Cloudy

    • 52
    • 69

    Mostly Cloudy

Today 22 Sep Monroe

Partly sunny. Highs in the lower 60s. East Winds 5 to 10 Mph.

Tonight 22 Sep Monroe

Partly cloudy. Lows in the lower 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandy Lake Temperature Statistics

September Temperature

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

  • Lowest 14 September, 2026

    36.9 °F

  • Average September

    67.6 °F

  • Highest 1 September, 2026

    91 °F

Climate (2021–2026)

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    58.4 °F
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