Apostle Islands National Lakeshore Weather Forecast

    • 58
    • 65

    Patchy Fog

    • 60
    • 68

    Slight Chance Thunderstorms

    • 61
    • 72

    Slight Chance Thunderstorms

    • 57
    • 67

    Chance Rain Showers

    • 54
    • 61

    Chance Rain Showers

    • 53
    • 58

    Slight Chance Thunderstorms

    • 53
    • 59

    Mostly Cloudy

Today 14 Sep Ashland

Mostly sunny. Near steady temperature in the mid 70s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 14 Sep Ashland

Mostly clear early this Evening, then becoming partly cloudy. Patchy dense fog. Lows in the upper 50s. Southeast Winds 5 to 10 Mph.

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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 8 September, 2025

    37 °F

  • Average September

    55.4 °F

  • Highest 1 September, 2025

    79 °F

Climate (2020–Present)

John F Kennedy Memorial Airport (29.2 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    43.6 °F

  • Average High 2020–2025

    53.7 °F
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