Cornwall Lake Weather Forecast

    • 72
    • 92

    Chance Thunderstorms

    • 65
    • 84

    Chance Thunderstorms

    • 60
    • 82

    Partly Sunny

    • 65
    • 87

    Slight Chance Thunderstorms

    • 64
    • 84

    Chance Rain Showers

    • 64
    • 85

    Chance Thunderstorms

    • 66
    • 88

    Chance Rain Showers

Today 5 Jul Van Buren

Sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph with Gusts to around 20 Mph. Heat index Readings 90 to 95.

Tonight 5 Jul Van Buren

Mostly clear. A 40 percent chance of Showers and Thunderstorms overnight. Lows in the lower 70s. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall Lake Temperature Statistics

July Temperature

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

  • Lowest 2 July, 2025

    60.8 °F

  • Average July

    74.6 °F

  • Highest 2 July, 2025

    84.2 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59.1 °F
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