Osterhout Lake Weather Forecast

    • 35
    • 55

    Sunny

    • 37
    • 61

    Sunny

    • 36
    • 65

    Mostly Sunny

    • 39
    • 68

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

    • 43
    • 69

    Partly Sunny

Today 17 Oct Allegan

Sunny. Highs in the mid 50s. Southwest Winds around 10 Mph with Gusts to around 20 Mph.

Tonight 17 Oct Allegan

Clear. Lows in the upper 30s to mid 40s near lake Michigan in the mid 30s inland. Southwest Winds 5 to 10 Mph with Gusts to around 25 Mph.

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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 6 October, 2026

    42.8 °F

  • Average October

    61.3 °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

    59.5 °F
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