Osterhout Lake Weather Forecast

    • 46
    • 61

    Mostly Cloudy

    • 49
    • 68

    Mostly Cloudy

    • 55
    • 66

    Chance Rain Showers

    • 55
    • 72

    Rain Showers Likely

    • 47
    • 67

    Rain Showers Likely

    • 43
    • 63

    Chance Rain Showers

    • 40
    • 62

    Chance Rain Showers

Today 31 Oct Allegan

Partly sunny with a 20 percent chance of rain Showers. Highs around 60.

Tonight 31 Oct Allegan

Mostly cloudy. A 20 percent chance of rain Showers after midnight. Lows in the mid 40s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osterhout Lake Temperature Statistics

October Temperature

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

  • Lowest 17 October, 2026

    32 °F

  • Average October

    57.7 °F

  • Highest 12 October, 2026

    86 °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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