Lost Lake Weather Forecast

    • 28
    • 52

    Slight Chance Thunderstorms

    • 33
    • 49

    Mostly Sunny

    • 48
    • 59

    Mostly Cloudy

    • 58
    • 69

    Partly Sunny

    • 56
    • 75

    Partly Sunny

    • 54
    • 68

    Partly Sunny

Today 14 Dec Upper St. Martin

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Morning, then sunny this afternoon. Much cooler with Highs in the mid 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 30 percent.

Tonight 14 Dec Upper St. Martin

Clear. Much Colder with Lows in the upper 20s. Northeast Winds 15 to 20 Mph.

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Lost Lake Temperature Statistics

December Temperature

Lafayette, Lafayette Regional Airport (20.5 miles)

  • Lowest 3 December, 2025

    33.1 °F

  • Average December

    50.1 °F

  • Highest 10 December, 2025

    73 °F

Climate (2020–Present)

Lafayette, Lafayette Regional Airport (20.5 miles)

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  • Average Low 2020–2025

    61.7 °F

  • Average 2020–2025

    70.7 °F

  • Average High 2020–2025

    80.4 °F
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