Perch Lake Weather Forecast

    • 40
    • 60

    Clearing Late

    • 42
    • 65

    Partly Sunny

    • 42
    • 65

    Mostly Cloudy

    • 45
    • 64

    Chance Rain Showers

    • 49
    • 71

    Mostly Cloudy

    • 53
    • 77

    Partly Sunny

    • 57
    • 86

    Mostly Sunny

Today 19 May Monroe

Cloudy and much cooler. Near steady temperature in the upper 50s. Northwest Winds 10 to 15 Mph.

Tonight 19 May Monroe

Mostly cloudy in the Evening, then becoming partly cloudy. Much Colder with Lows around 40. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Perch Lake Temperature Statistics

May Temperature

Sparta, Sparta / Fort McCoy Airport (3.1 miles)

  • Lowest 6 May, 2026

    25.5 °F

  • Average May

    52.4 °F

  • Highest 15 May, 2026

    84.9 °F

Climate (2021–Present)

Sparta, Sparta / Fort McCoy Airport (3.1 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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