Lake Superior Weather Forecast

    • 37
    • 40

    Chance Rain Showers

    • 38
    • 43

    Mostly Cloudy

    • 38
    • 42

    Chance Rain Showers

    • 39
    • 45

    Partly Sunny

    • 39
    • 45

    Partly Sunny

    • 41
    • 46

    Chance Rain Showers

Today 22 Apr Southern Cook/North Shore

Partly sunny in the Morning, then mostly cloudy with a chance of rain in the afternoon. Highs in the mid 40s. East Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 22 Apr Southern Cook/North Shore

Mostly clear. Near steady temperature in the lower 30s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Superior Temperature Statistics

April Temperature

Grand Marais, The Bay of Grand Marais (28 miles)

  • Lowest 7 April, 2025

    18.8 °F

  • Average April

    35.5 °F

  • Highest 11 April, 2025

    51.7 °F

Climate (2020–Present)

Grand Marais, The Bay of Grand Marais (28 miles)

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  • Average Low 2020–2025

    33.9 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    48.2 °F
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