Lake Koshkonong Weather Forecast

    • 37
    • 58

    Rain Showers

    • 45
    • 64

    Slight Chance Rain Showers

    • 40
    • 68

    Chance Rain Showers

    • 39
    • 59

    Partly Sunny

    • 43
    • 62

    Chance Rain Showers

    • 45
    • 66

    Chance Rain Showers

Today 7 May Jefferson

Partly sunny. Areas of frost in the morning. Scattered light rain Showers late in the morning. Scattered light rain Showers and slight chance of Thunderstorms in the afternoon. Highs in the upper 50s. West Winds 5 to 15 Mph. Chance of precipitation 40 percent.

Tonight 7 May Jefferson

Clear. Widespread frost. Lows in the lower 30s. Southwest Winds up to 5 Mph.

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Lake Koshkonong Temperature Statistics

May Temperature

Watertown (20.5 miles)

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  • Average May

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Climate (2021–Present)

Watertown (20.5 miles)

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  • Average Low 2021–2026

    35.7 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    54.6 °F
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