Hartley Lake Weather Forecast

    • 59
    • 79

    Becoming Sunny

    • 65
    • 83

    Mostly Sunny

    • 64
    • 87

    Chance Thunderstorms

    • 53
    • 77

    Partly Sunny

    • 48
    • 69

    Mostly Sunny

    • 44
    • 64

    Partly Sunny

Today 18 Aug Bottineau

Mostly sunny. Highs in the lower 80s. Light and variable Winds, becoming northwest up to 5 Mph in the afternoon.

Tonight 18 Aug Bottineau

Increasing Clouds. Patchy fog. Lows around 60. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartley Lake Temperature Statistics

August Temperature

ROLLA (26.7 miles)

  • Lowest 15 August, 2025

    46.4 °F

  • Average August

    64.8 °F

  • Highest 7 August, 2025

    86 °F

Climate (2020–Present)

ROLLA (26.7 miles)

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  • Average Low 2020–2025

    28.5 °F

  • Average 2020–2025

    38.8 °F

  • Average High 2020–2025

    48.5 °F
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