Apostle Islands National Lakeshore Weather Forecast

    • 38
    • 48

    Rain Showers

    • 36
    • 47

    Rain Showers Likely

    • 39
    • 49

    Mostly Sunny

    • 42
    • 54

    Mostly Cloudy

    • 41
    • 57

    Chance Rain Showers

    • 42
    • 56

    Chance Rain Showers

Today 18 May Ashland

Mostly cloudy with a slight chance of Showers. A slight chance of Thunderstorms this afternoon. Highs in the lower 60s. Southwest Winds around 5 Mph, becoming north around 5 Mph this afternoon. Chance of rain 20 percent.

Tonight 18 May Ashland

A chance of Thunderstorms. Showers. Lows around 40. Northeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Apostle Islands National Lakeshore Temperature Statistics

May Temperature

John F Kennedy Memorial Airport (29.2 miles)

  • Lowest 2 May, 2026

    24.7 °F

  • Average May

    47.5 °F

  • Highest 15 May, 2026

    82.9 °F

Climate (2021–Present)

John F Kennedy Memorial Airport (29.2 miles)

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  • Average Low 2021–2026

    33.1 °F

  • Average 2021–2026

    43.6 °F

  • Average High 2021–2026

    53.8 °F
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