Mandan Lake Weather Forecast

    • 41
    • 65

    Increasing Clouds

    • 47
    • 84

    Slight Chance Thunderstorms

    • 41
    • 75

    Breezy

    • 53
    • 82

    Breezy

    • 50
    • 89

    Partly Sunny

    • 49
    • 81

    Partly Sunny

Today 10 May Oliver

Sunny. Highs in the lower 60s. North Winds around 5 Mph.

Tonight 10 May Oliver

Increasing Clouds. Lows in the upper 30s. East Winds around 10 Mph with Gusts up to 20 Mph, becoming southeast with Gusts up to 30 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mandan Lake Temperature Statistics

May Temperature

HAZEN (18.6 miles)

  • Lowest 7 May, 2026

    15.8 °F

  • Average May

    49.2 °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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