Clear Lake Weather Forecast

    • 45
    • 63

    Increasing Clouds

    • 53
    • 73

    Mostly Cloudy

    • 28
    • 58

    Chance Rain/Snow

    • 26
    • 42

    Partly Sunny

    • 41
    • 57

    Partly Sunny

    • 36
    • 65

    Mostly Cloudy

Today 13 Mar Rock

Mostly sunny. Highs in the mid 60s. Southeast Winds up to 10 Mph.

Tonight 13 Mar Rock

Not as cool. Partly cloudy. A 20 percent chance of light rain Showers and Thunderstorms early in the morning. Lows in the mid 40s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

March Temperature

Janesville-Rock County (12.4 miles)

  • Lowest 2 March, 2025

    12.2 °F

  • Average March

    34.6 °F

  • Highest 10 March, 2025

    68 °F

Climate (2020–Present)

Janesville-Rock County (12.4 miles)

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  • Average Low 2020–2025

    40.6 °F

  • Average 2020–2025

    48.8 °F

  • Average High 2020–2025

    60.2 °F
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