Olsons Bay Weather Forecast

    • 33
    • 49

    Increasing Clouds

    • 44
    • 58

    Mostly Sunny

    • 46
    • 69

    Chance Rain

    • 35
    • 56

    Chance Rain

    • 31
    • 53

    Slight Chance Rain

    • 34
    • 50

    Partly Sunny

    • 36
    • 51

    Mostly Cloudy

Today 1 Mar Jefferson

Mostly cloudy. South Winds 10 to 15 Mph.

Tonight 1 Mar Jefferson

Mostly cloudy. Lows in the lower 30s. South Winds 5 to 15 Mph.

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Olsons Bay Temperature Statistics

March Temperature

Janesville-Rock County (17.4 miles)

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Climate (2019–Present)

Janesville-Rock County (17.4 miles)

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  • Average Low 2019–2024

    40.6 °F
  • Average 2019–2024

    48.6 °F
  • Average High 2019–2024

    59.8 °F
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