Apostle Islands National Lakeshore Weather Forecast

    • 58
    • 72

    Becoming Sunny

    • 57
    • 73

    Mostly Sunny

    • 63
    • 73

    Chance Rain Showers

    • 61
    • 75

    Slight Chance Thunderstorms

    • 58
    • 72

    Mostly Sunny

    • 59
    • 69

    Partly Sunny

Today 18 Aug Ashland

Mostly sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 18 Aug Ashland

Mostly clear. Colder with Lows in the mid 40s. West Winds around 5 Mph.

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Apostle Islands National Lakeshore Temperature Statistics

August Temperature

John F Kennedy Memorial Airport (29.2 miles)

  • Lowest 5 August, 2026

    46.7 °F

  • Average August

    66.9 °F

  • Highest 3 August, 2026

    85.6 °F

Climate (2021–2026)

John F Kennedy Memorial Airport (29.2 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    43.6 °F

  • Average High 2021–2026

    53.8 °F
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