Osterhout Lake Weather Forecast

    • 8
    • 24

    Mostly Cloudy

    • 20
    • 28

    Snow Showers Likely

    • 18
    • 33

    Chance Snow Showers

    • 8
    • 29

    Chance Snow Showers

    • 13
    • 24

    Snow Showers Likely

    • 24
    • 33

    Rain/Snow Likely

Today 4 Dec Allegan

Mostly cloudy. Highs in the lower 20s. North Winds 5 to 10 Mph with Gusts to around 25 Mph becoming west in the afternoon.

Tonight 4 Dec Allegan

Partly cloudy. A 20 percent chance of snow Showers in the evening. Lows near 15 near lake Michigan and 5 to 10 above inland. South Winds around 10 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Osterhout Lake Temperature Statistics

December Temperature

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

  • Lowest 1 December, 2025

    24.8 °F

  • Average December

    28.5 °F

  • Highest 1 December, 2025

    30.2 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    59.3 °F
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