Clear Lake Weather Forecast

    • 55
    • 71

    Chance Rain Showers

    • 57
    • 78

    Rain Showers Likely

    • 66
    • 84

    Rain Showers Likely

    • 69
    • 88

    Rain Showers Likely

    • 56
    • 85

    Rain Showers Likely

    • 50
    • 69

    Chance Rain Showers

Today 15 May Allegan

Mostly cloudy in the morning then becoming mostly sunny. Highs in the lower 70s. South Winds 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 15 May Allegan

Partly cloudy. A chance of rain Showers and a slight chance of Thunderstorms after midnight. Lows in the mid 50s. South Winds 5 to 15 Mph with Gusts to around 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

May Temperature

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

  • Lowest 12 May, 2026

    32 °F

  • Average May

    50.6 °F

  • Highest 4 May, 2026

    77 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.5 °F
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