Cornwall Lake Weather Forecast

    • 52
    • 72

    Rain Showers

    • 57
    • 81

    Partly Sunny

    • 61
    • 84

    Mostly Cloudy

    • 60
    • 83

    Chance Rain Showers

    • 54
    • 82

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 24 May Van Buren

Patchy fog in the morning. Rain Showers and a slight chance of Thunderstorms. Highs in the lower 70s. Light Winds becoming northwest 5 to 10 Mph in the afternoon. Chance of rain 80 percent.

Tonight 24 May Van Buren

Partly cloudy. Lows in the lower 50s. Light Winds.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall Lake Temperature Statistics

May Temperature

South Haven, South Haven Area Regional Airport (12.4 miles)

  • Lowest 12 May, 2026

    32 °F
  • Average May

    55.7 °F
  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

South Haven, South Haven Area Regional Airport (12.4 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