Mandan Lake Weather Forecast

    • 37
    • 72

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

    • 50
    • 79

    Chance Rain

    • 29
    • 60

    Rain

    • 25
    • 42

    Chance Snow

    • 25
    • 43

    Slight Chance Snow

Today 20 Apr Oliver

Sunny, warmer. Highs around 70. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west in the afternoon.

Tonight 20 Apr Oliver

Mostly clear. Lows in the upper 30s. North Winds 5 to 10 Mph, becoming east after midnight.

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  • Temperature Real-Time

Mandan Lake Temperature Statistics

April Temperature

HAZEN (18.6 miles)

  • Lowest 18 April, 2026

    15.8 °F

  • Average April

    38.2 °F

  • Highest 12 April, 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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