Lake Sinai Weather Forecast

    • 26
    • 42

    Increasing Clouds

    • 26
    • 43

    Partly Sunny

    • 27
    • 36

    Mostly Cloudy

    • 30
    • 43

    Partly Sunny

    • 20
    • 44

    Mostly Cloudy

    • 23
    • 34

    Partly Sunny

Today 21 Dec Brookings

Sunny. Not as cool with Highs around 40. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Dec Brookings

Mostly cloudy. A slight chance of rain and freezing rain in the evening. Not as cool with Lows in the mid 20s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

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Lake Sinai Temperature Statistics

December Temperature

Brookings, Brookings Municipal Airport (12.4 miles)

  • Lowest 4 December, 2025

    -14.1 °F

  • Average December

    17.4 °F

  • Highest 16 December, 2025

    46 °F

Climate (2020–Present)

Brookings, Brookings Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    55.5 °F
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