Clear Lake Weather Forecast

    • 59
    • 73

    Increasing Clouds

    • 61
    • 67

    Rain Showers Likely

    • 53
    • 70

    Rain Showers

    • 41
    • 63

    Chance Rain Showers

    • 43
    • 65

    Partly Sunny

    • 40
    • 64

    Mostly Sunny

Today 29 Sep Allegan

Sunny. Highs in the lower 60s.

Tonight 29 Sep Allegan

Mostly cloudy. Lows around 60. Light Winds becoming south 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

September Temperature

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

  • Lowest 26 September, 2026

    41 °F

  • Average September

    67.1 °F

  • Highest 2 September, 2026

    93.2 °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

    59.5 °F
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