Osterhout Lake Weather Forecast

    • 63
    • 85

    Decreasing Clouds

    • 64
    • 87

    Becoming Sunny

    • 64
    • 88

    Mostly Sunny

    • 66
    • 89

    Sunny

    • 72
    • 89

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

    • 66
    • 88

    Slight Chance Thunderstorms

Today 10 Jul Allegan

Mostly sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 80s. North Winds 5 to 10 Mph with Gusts to around 20 Mph.

Tonight 10 Jul Allegan

Mostly cloudy. Lows in the lower 60s. North Winds around 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osterhout Lake Temperature Statistics

July Temperature

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

  • Lowest 8 July, 2026

    59 °F

  • Average July

    76.1 °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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