Lake Sakakawea State Park Weather Forecast

    • 52
    • 77

    Rain Showers Likely

    • 49
    • 75

    Chance Rain Showers

    • 52
    • 78

    Partly Sunny

    • 53
    • 78

    Chance Thunderstorms

    • 60
    • 87

    Mostly Sunny

    • 56
    • 87

    Chance Thunderstorms

    • 55
    • 81

    Slight Chance Thunderstorms

Today 2 Jun Mercer

Showers likely and a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail. Highs in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 2 Jun Mercer

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely and a slight chance of Thunderstorms after midnight. Some Thunderstorms may be severe with damaging Winds and large hail in the evening. Lows around 50. Southeast Winds around 5 Mph, becoming south after midnight. Chance of rain 60 percent.

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Lake Sakakawea State Park Temperature Statistics

June Temperature

Garrison (8.1 miles)

  • Lowest

  • Average June

  • Highest

Climate (2021–Present)

Garrison (8.1 miles)

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  • Average Low 2021–2026

    31.4 °F
  • Average 2021–2026

    42.7 °F
  • Average High 2021–2026

    54.2 °F
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