Perch Lake Weather Forecast

    • 3
    • 17

    Mostly Cloudy

    • 16
    • 29

    Snow Likely

    • -2
    • 23

    Snow Likely

    • 4
    • 14

    Mostly Cloudy

    • 5
    • 21

    Partly Sunny

    • 11
    • 25

    Mostly Cloudy

    • 17
    • 32

    Mostly Cloudy

Today 29 Dec Monroe

Partly sunny with a slight chance of Flurries. Patchy blowing snow. Much Colder. Near steady temperature around 15. Northwest Winds 10 to 20 Mph with Gusts up to 30 Mph.

Tonight 29 Dec Monroe

Mostly cloudy. Lows around 3 above. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Perch Lake Temperature Statistics

December Temperature

Sparta, Sparta / Fort McCoy Airport (3.1 miles)

  • Lowest 4 December, 2025

    -12.3 °F

  • Average December

    21.1 °F

  • Highest 23 December, 2025

    43.9 °F

Climate (2020–Present)

Sparta, Sparta / Fort McCoy Airport (3.1 miles)

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  • Average Low 2020–2025

    34.7 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    58.1 °F
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