Sandy Lake Weather Forecast

    • 63
    • 71

    Rain Showers

    • 55
    • 82

    Rain Showers

    • 41
    • 66

    Mostly Cloudy

    • 39
    • 63

    Partly Sunny

    • 44
    • 67

    Mostly Cloudy

    • 48
    • 72

    Slight Chance Thunderstorms

Today 17 May Monroe

Mostly cloudy with scattered Showers and Thunderstorms. Cooler with Highs around 70. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 17 May Monroe

Scattered Thunderstorms. Scattered Showers this Evening, then Showers after midnight. Warmer with Lows in the lower 60s. East Winds 5 to 10 Mph, becoming south 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of rain 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sandy Lake Temperature Statistics

May Temperature

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

  • Lowest 6 May, 2026

    25.5 °F

  • Average May

    51.1 °F

  • Highest 15 May, 2026

    84.9 °F

Climate (2021–Present)

Sparta, Sparta / Fort McCoy Airport (0.6 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
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