Apostle Islands National Lakeshore Weather Forecast

    • 62
    • 75

    Rain Showers Likely

    • 58
    • 69

    Breezy

    • 62
    • 71

    Mostly Sunny

    • 60
    • 77

    Chance Thunderstorms

    • 55
    • 70

    Slight Chance Rain Showers

    • 55
    • 66

    Mostly Cloudy

Today 8 Sep Ashland

Cloudy. Showers with a chance of Thunderstorms in the Morning, then a chance of Showers in the afternoon. Locally heavy rainfall possible in the morning. Humid with Highs in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of rain 90 percent.

Tonight 8 Sep Ashland

Showers likely with a chance of Thunderstorms. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Apostle Islands National Lakeshore Temperature Statistics

September Temperature

John F Kennedy Memorial Airport (29.2 miles)

  • Lowest 3 September, 2026

    51.7 °F

  • Average September

    68.8 °F

  • Highest 1 September, 2026

    89.7 °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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