Mandan Lake Weather Forecast

    • 29
    • 63

    Mostly Sunny

    • 40
    • 65

    Mostly Sunny

    • 47
    • 85

    Slight Chance Thunderstorms

    • 42
    • 75

    Breezy

    • 52
    • 81

    Partly Sunny

    • 49
    • 86

    Breezy

Today 9 May Oliver

Sunny. Highs around 60. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 May Oliver

Mostly clear. Widespread frost after midnight. Lows in the upper 20s. North Winds around 10 Mph. Gusts up to 25 Mph in the evening.

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Mandan Lake Temperature Statistics

May Temperature

HAZEN (18.6 miles)

  • Lowest 7 May, 2026

    15.8 °F

  • Average May

    48.2 °F

  • Highest 3 May, 2026

    75.2 °F

Climate (2021–Present)

HAZEN (18.6 miles)

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  • Average Low 2021–2026

    30.3 °F

  • Average 2021–2026

    43.1 °F

  • Average High 2021–2026

    55 °F
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