Lake Koshkonong Weather Forecast

    • 61
    • 85

    Rain Showers

    • 63
    • 83

    Mostly Cloudy

    • 66
    • 83

    Rain Showers

    • 68
    • 88

    Chance Thunderstorms

    • 71
    • 92

    Slight Chance Thunderstorms

    • 71
    • 95

    Chance Thunderstorms

Today 6 Jun Jefferson

Partly sunny in the morning then clearing. Highs in the mid 80s. Northwest Winds up to 5 Mph.

Tonight 6 Jun Jefferson

Mostly cloudy. Scattered light Showers and isolated Thunderstorms after Midnight, then scattered light Showers early in the morning. Lows in the mid 60s. West Winds up to 5 Mph. Chance of precipitation 50 percent.

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Lake Koshkonong Temperature Statistics

June Temperature

Watertown (20.5 miles)

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  • Average June

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Climate (2021–Present)

Watertown (20.5 miles)

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  • Average Low 2021–2026

    35.5 °F

  • Average 2021–2026

    45.2 °F

  • Average High 2021–2026

    54.3 °F
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