Clear Lake Weather Forecast

    • 60
    • 77

    Becoming Sunny

    • 63
    • 79

    Rain Showers

    • 54
    • 77

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 57
    • 76

    Chance Rain Showers

Today 17 Aug Allegan

Mostly sunny. Highs in the upper 70s. Light Winds becoming northwest 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 17 Aug Allegan

Mostly clear. Lows around 60. Northwest Winds around 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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  • Temperature Real-Time

Clear Lake Temperature Statistics

August Temperature

South Haven, South Haven Area Regional Airport (13 miles)

  • Lowest 3 August, 2026

    57.2 °F

  • Average August

    72.6 °F

  • Highest 14 August, 2026

    86 °F

Climate (2021–2026)

South Haven, South Haven Area Regional Airport (13 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.6 °F
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