Sullivan Lake Weather Forecast

    • 48
    • 72

    Becoming Sunny

    • 47
    • 70

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

    • 61
    • 79

    Partly Sunny

    • 61
    • 78

    Mostly Cloudy

    • 65
    • 80

    Partly Sunny

Today 31 Jan Iberville

Partly sunny. Less humid with Highs in the lower 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 31 Jan Iberville

Partly cloudy in the Evening, then clearing. Cooler with Lows in the upper 40s. Northwest Winds around 5 Mph.

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Sullivan Lake Temperature Statistics

January Temperature

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (26.7 miles)

  • Lowest 22 January, 2025

    7.8 °F

  • Average January

    47.6 °F

  • Highest 5 January, 2025

    81.6 °F

Climate (2020–Present)

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (26.7 miles)

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  • Average Low 2020–2025

    60.4 °F

  • Average 2020–2025

    70.1 °F

  • Average High 2020–2025

    80.6 °F
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