Siskiwit Lake Weather Forecast

    • 35
    • 40

    Rain Showers

    • 37
    • 47

    Mostly Sunny

    • 40
    • 47

    Partly Sunny

    • 41
    • 51

    Chance Rain Showers

    • 37
    • 51

    Partly Sunny

    • 38
    • 47

    Chance Rain Showers

Today 12 May Keweenaw

Rain Showers. Near steady temperature in the lower 40s. Southeast Winds 10 to 20 Mph with Gusts up to 35 Mph. Chance of rain 100 percent.

Tonight 12 May Keweenaw

A chance of rain Showers in the Evening, then a slight chance of rain Showers after midnight. Cloudy. Lows around 35. North Winds 5 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Siskiwit Lake Temperature Statistics

May Temperature

Copper Harbor (56.5 miles)

  • Lowest 8 May, 2026

    30 °F

  • Average May

    41.6 °F

  • Highest 3 May, 2026

    57.9 °F

Climate (2021–Present)

Copper Harbor (56.5 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    50.8 °F
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