Island Lake Reservoir Weather Forecast

    • 42
    • 81

    Increasing Clouds

    • 32
    • 55

    Mostly Sunny

    • 37
    • 59

    Sunny

    • 46
    • 75

    Chance Rain Showers

    • 42
    • 66

    Partly Sunny

    • 54
    • 75

    Partly Sunny

Today 6 May Carlton/South St. Louis

Sunny, hot with Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 6 May Carlton/South St. Louis

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Reservoir Temperature Statistics

May Temperature

Duluth International Airport (11.2 miles)

  • Lowest 3 May, 2025

    30.9 °F

  • Average May

    47.2 °F

  • Highest 3 May, 2025

    64.9 °F

Climate (2020–Present)

Duluth International Airport (11.2 miles)

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  • Average Low 2020–2025

    33.6 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.1 °F
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