Olsons Bay Weather Forecast

    • 50
    • 75

    Rain Showers

    • 50
    • 77

    Mostly Sunny

    • 57
    • 82

    Mostly Sunny

    • 63
    • 87

    Mostly Cloudy

    • 63
    • 86

    Rain Showers Likely

    • 63
    • 85

    Chance Thunderstorms

Today 1 Jun Jefferson

Cloudy in the morning then becoming partly sunny. Isolated Sprinkles in the morning. Highs in the mid 70s. Northeast Winds up to 10 Mph.

Tonight 1 Jun Jefferson

Mostly clear. Lows around 50. Northeast Winds up to 10 Mph.

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Olsons Bay Temperature Statistics

June Temperature

Janesville-Rock County (17.4 miles)

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Climate (2021–Present)

Janesville-Rock County (17.4 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    60.4 °F
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