Osterhout Lake Weather Forecast

    • 70
    • 79

    Rain Showers

    • 62
    • 80

    Rain Showers Likely

    • 57
    • 77

    Mostly Sunny

    • 63
    • 80

    Mostly Cloudy

    • 57
    • 78

    Slight Chance Thunderstorms

    • 55
    • 73

    Partly Sunny

Today 15 Aug Allegan

A chance of Showers in the Morning, then Showers likely and a slight chance of Thunderstorms in the afternoon. Highs around 80. Southeast Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon. Chance of rain 70 percent.

Tonight 15 Aug Allegan

Partly cloudy. A chance of Showers and a slight chance of Thunderstorms in the evening. Lows around 70. Southeast Winds around 10 Mph with Gusts to around 20 Mph in the evening becoming light. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osterhout Lake Temperature Statistics

August Temperature

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

  • Lowest 3 August, 2026

    57.2 °F

  • Average August

    72.3 °F

  • Highest 4 August, 2026

    84.2 °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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