Cornwall Lake Weather Forecast

    • 62
    • 80

    Chance Thunderstorms

    • 60
    • 82

    Partly Sunny

    • 62
    • 84

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 63
    • 84

    Rain Showers Likely

    • 60
    • 81

    Slight Chance Thunderstorms

Today 5 Jul Van Buren

Patchy fog in the morning. Showers likely and a chance of Thunderstorms. Highs around 80. Light Winds becoming northeast 5 to 10 Mph with Gusts to around 20 Mph in the afternoon. Chance of rain 60 percent.

Tonight 5 Jul Van Buren

Partly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 60s. Northeast Winds 5 to 10 Mph with Gusts to around 25 Mph. Chance of rain 50 percent.

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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 3 July, 2026

    69.8 °F

  • Average July

    81.7 °F

  • Highest 1 July, 2026

    91.4 °F

Climate (2021–2026)

South Haven, South Haven Area Regional Airport (12.4 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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