Lake Upson Weather Forecast

    • 28
    • 53

    Rain Showers

    • 24
    • 34

    Breezy

    • 27
    • 34

    Partly Sunny

    • 35
    • 43

    Mostly Cloudy

    • 34
    • 44

    Mostly Sunny

    • 37
    • 45

    Partly Sunny

Today 17 Apr Keweenaw

Mostly cloudy. A chance of rain Showers and Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 50s. Southeast Winds 5 to 15 Mph, becoming south this afternoon. Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 17 Apr Keweenaw

Rain Showers with a chance of Thunderstorms in the Evening, then a slight chance of rain and snow Showers after midnight. Cloudy. Some Thunderstorms may produce heavy rainfall in the evening. Lows around 28. Northwest Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 80 percent.

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  • Temperature Forecast NOAA

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Lake Upson Temperature Statistics

April Temperature

Copper Harbor (7.5 miles)

  • Lowest 7 April, 2026

    16 °F

  • Average April

    33.2 °F

  • Highest 12 April, 2026

    51.1 °F

Climate (2021–Present)

Copper Harbor (7.5 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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