Mandan Weather Forecast

    • 33
    • 44

    Decreasing Clouds

    • 36
    • 47

    Mostly Sunny

    • 36
    • 48

    Rain Showers

    • 38
    • 50

    Partly Sunny

    • 43
    • 56

    Mostly Cloudy

    • 44
    • 60

    Slight Chance Rain Showers

Today 10 May Keweenaw

Partly cloudy. A slight chance of rain Showers in the afternoon. Highs in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 10 May Keweenaw

Mostly clear. Lows around 33. Light northwest Winds.

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Mandan Temperature Statistics

May Temperature

Copper Harbor (6.8 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    41.4 °F

  • Highest 3 May, 2026

    57.9 °F

Climate (2021–Present)

Copper Harbor (6.8 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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