Clear Lake Weather Forecast

    • 59
    • 74

    Increasing Clouds

    • 59
    • 81

    Rain Showers Likely

    • 63
    • 76

    Rain Showers Likely

    • 57
    • 76

    Chance Rain Showers

    • 57
    • 75

    Chance Rain Showers

    • 55
    • 75

    Chance Rain Showers

Today 14 Sep Allegan

Sunny. Highs in the lower 70s. Southeast Winds around 10 Mph.

Tonight 14 Sep Allegan

Partly cloudy in the Evening, then mostly cloudy with a 20 percent chance of Showers and Thunderstorms after midnight. Lows in the upper 50s. Southeast Winds 5 to 15 Mph with Gusts to around 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

September Temperature

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

  • Lowest 11 September, 2026

    51.8 °F

  • Average September

    73.3 °F

  • Highest 2 September, 2026

    93.2 °F

Climate (2021–2026)

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

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

  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.5 °F
Get WillyWeather+ to remove ads