Big Bay Weather Forecast

    • 18
    • 29

    Blustery

    • 22
    • 29

    Mostly Cloudy

    • 10
    • 28

    Snow Showers Likely

    • 7
    • 16

    Chance Snow Showers

    • 9
    • 17

    Slight Chance Snow Showers

    • 20
    • 27

    Mostly Cloudy

Today 13 Mar Keweenaw

Cloudy. Snow in the Morning, then a chance of snow in the afternoon. Freezing spray in the morning. Areas of blowing snow. Snow may be heavy at Times in the morning. Snow accumulation of 2 to 4 Inches. Total snow accumulation 2 to 9 Inches. Breezy. Near steady temperature in the mid 20s. Northeast Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming north 15 to 20 Mph with Gusts up to 30 Mph in the afternoon. Chance of snow 90 percent.

Tonight 13 Mar Keweenaw

Partly cloudy. Lows 13 to 18 inland to around 19 at the shore. North Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Bay Temperature Statistics

March Temperature

Copper Harbor (6.2 miles)

  • Lowest 1 March, 2026

    1 °F

  • Average March

    29.8 °F

  • Highest 9 March, 2026

    51.1 °F

Climate (2021–Present)

Copper Harbor (6.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    51 °F
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