Hartley Lake Weather Forecast

    • 66
    • 86

    Partly Sunny

    • 64
    • 90

    Slight Chance Thunderstorms

    • 57
    • 77

    Chance Rain Showers

    • 56
    • 73

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 59
    • 78

    Partly Sunny

Today 18 Jul Bottineau

Patchy fog early in the morning. Partly cloudy. Highs in the upper 80s. Southwest Winds around 5 Mph.

Tonight 18 Jul Bottineau

Partly cloudy. Lows in the upper 60s. Southeast Winds 5 to 10 Mph.

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Hartley Lake Temperature Statistics

July Temperature

ROLLA (26.7 miles)

  • Lowest 2 July, 2026

    53.6 °F

  • Average July

    69.5 °F

  • Highest 12 July, 2026

    93.2 °F

Climate (2021–2026)

ROLLA (26.7 miles)

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  • Average Low 2021–2026

    28.8 °F

  • Average 2021–2026

    38.7 °F

  • Average High 2021–2026

    48.3 °F
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