Clear Lake Weather Forecast

    • 49
    • 76

    Mostly Sunny

    • 52
    • 77

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 53
    • 79

    Sunny

    • 57
    • 81

    Mostly Sunny

    • 64
    • 84

    Slight Chance Thunderstorms

Today 30 May Allegan

Sunny. Highs in the mid 70s. East Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 30 May Allegan

Mostly clear. Lows in the upper 40s. East Winds around 10 Mph. Gusts up to 25 Mph in the evening.

Graph Plots Open in Graphs

  • 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

    57.2 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.5 °F
Get WillyWeather+ to remove ads