Cornwall Lake Weather Forecast

    • 59
    • 81

    Patchy Smoke

    • 68
    • 83

    Mostly Cloudy

    • 59
    • 82

    Chance Rain Showers

    • 52
    • 74

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 81

    Partly Sunny

Today 19 Jul Van Buren

Mostly sunny. Patchy smoke through the day. Highs in the lower 80s. Light Winds becoming north 5 to 10 Mph in the afternoon.

Tonight 19 Jul Van Buren

Partly cloudy. Patchy smoke through the night. Lows in the upper 50s. Light Winds.

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  • Temperature Real-Time

Cornwall Lake Temperature Statistics

July Temperature

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

  • Lowest 8 July, 2026

    59 °F

  • Average July

    75.8 °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

    59.6 °F
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