Isle Royale Weather Forecast

    • -13
    • -7

    Snow Showers

    • -6
    • 3

    Chance Snow Showers

    • -8
    • 2

    Cold

    • -1
    • 10

    Cold

    • -3
    • 7

    Cold

    • -1
    • 6

    Cold

Today 23 Jan Keweenaw

Snow Showers. Patchy blowing snow. Snow accumulation around an inch. Breezy. Bitterly cold with Highs zero to 5 below. Northwest Winds 15 to 25 Mph with Gusts up to 35 Mph. Chance of snow 80 percent. Wind chill Values as low as 45 below.

Tonight 23 Jan Keweenaw

Cold. Patchy blowing snow in the evening. Numerous snow Showers in the Evening, then scattered snow Showers after midnight. Cloudy. Snow accumulation up to 1 inch. Lows around 12 below inland to around 3 below at the shore. Northwest Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of snow 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle Royale Temperature Statistics

January Temperature

Copper Harbor (58.4 miles)

  • Lowest 19 January, 2026

    3 °F

  • Average January

    21.8 °F

  • Highest 13 January, 2026

    37 °F

Climate (2021–Present)

Copper Harbor (58.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    51 °F
Get WillyWeather+ to remove ads