Osterhout Lake Weather Forecast

    • 18
    • 46

    Rain Showers

    • 18
    • 26

    Snow Showers Likely

    • 18
    • 39

    Chance Rain Showers

    • 17
    • 25

    Mostly Cloudy

    • 28
    • 35

    Chance Snow Showers

    • 28
    • 41

    Mostly Cloudy

Today 18 Dec Allegan

Rain Showers. Patchy fog. Highs in the mid 40s. South Winds 15 to 20 Mph with Gusts to around 35 Mph. Chance of rain 100 percent.

Tonight 18 Dec Allegan

Rain Showers, possibly mixed with snow Showers in the Evening, then snow Showers after midnight. Patchy fog through the night. Patchy blowing snow after midnight. Snow accumulation an inch or less. Lows 15 to 20. West Winds 10 to 15 Mph increasing to 15 to 25 Mph after midnight. Gusts up to 35 Mph. Chance of precipitation 100 percent.

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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 8 December, 2025

    -2.2 °F

  • Average December

    24.9 °F

  • Highest 10 December, 2025

    41 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    59.3 °F
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