Round Lake Weather Forecast

    • 35
    • 53

    Chance Rain Showers

    • 43
    • 56

    Mostly Sunny

    • 36
    • 57

    Breezy

    • 32
    • 49

    Mostly Sunny

    • 37
    • 57

    Partly Sunny

    • 42
    • 62

    Mostly Sunny

Today 18 Oct Deuel

Partly sunny this Morning, then becoming mostly cloudy. A 50 percent chance of Showers. Highs in the mid 50s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon.

Tonight 18 Oct Deuel

Mostly clear. Lows in the mid 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Round Lake Temperature Statistics

October Temperature

Watertown, Watertown Municipal Airport (16.2 miles)

  • Lowest 8 October, 2025

    36 °F

  • Average October

    57.7 °F

  • Highest 3 October, 2025

    87.1 °F

Climate (2020–Present)

Watertown, Watertown Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    35.1 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    55.7 °F
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