Harper Lake Weather Forecast

    • 47
    • 79

    Mostly Sunny

    • 55
    • 83

    Mostly Sunny

    • 57
    • 82

    Rain Showers Likely

    • 51
    • 79

    Chance Rain Showers

    • 48
    • 76

    Mostly Sunny

    • 51
    • 79

    Partly Sunny

    • 57
    • 82

    Slight Chance Thunderstorms

Today 19 Aug Lake

Mostly sunny. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 19 Aug Lake

Mostly clear. Lows in the upper 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harper Lake Temperature Statistics

August Temperature

Manistee County - Blacker Airport (16.2 miles)

  • Lowest 17 August, 2026

    52 °F

  • Average August

    69.5 °F

  • Highest 14 August, 2026

    84 °F

Climate (2021–2026)

Manistee County - Blacker Airport (16.2 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    56.1 °F
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