Olsons Bay Weather Forecast

    • 28
    • 46

    Mostly Cloudy

    • 38
    • 51

    Partly Sunny

    • 32
    • 56

    Mostly Sunny

    • 40
    • 57

    Partly Sunny

    • 31
    • 57

    Partly Sunny

Today 1 Nov Jefferson

Cloudy with scattered light rain Showers. Highs in the mid 40s. North Winds 5 to 10 Mph. Chance of Showers 50 percent.

Tonight 1 Nov Jefferson

Cloudy with scattered light rain Showers. Near steady temperature in the upper 30s. Northwest Winds up to 5 Mph. Chance of Showers 40 percent.

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Olsons Bay Temperature Statistics

November Temperature

Janesville-Rock County (17.4 miles)

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  • Average November

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Climate (2020–Present)

Janesville-Rock County (17.4 miles)

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  • Average Low 2020–2025

    40.6 °F
  • Average 2020–2025

    48.9 °F
  • Average High 2020–2025

    60.5 °F
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