St. Tammany Regional Airport Weather Forecast

    • 45
    • 71

    Becoming Sunny

    • 44
    • 68

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 57
    • 74

    Partly Sunny

    • 60
    • 76

    Mostly Cloudy

    • 62
    • 76

    Mostly Cloudy

    • 62
    • 79

    Slight Chance Thunderstorms

Today 31 Jan Northern St. Tammany

Mostly cloudy this Morning, then becoming mostly sunny. A chance of Showers this morning. Highs in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 31 Jan Northern St. Tammany

Mostly cloudy this Evening, then clearing. Much cooler with Lows in the mid 40s. Northwest Winds around 5 Mph.

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St. Tammany Regional Airport Temperature Statistics

January Temperature

Slidell, Slidell Airport (11.8 miles)

  • Lowest 22 January, 2025

    8.9 °F

  • Average January

    47.9 °F

  • Highest 5 January, 2025

    78.7 °F

Climate (2020–Present)

Slidell, Slidell Airport (11.8 miles)

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  • Average Low 2020–2025

    59.9 °F

  • Average 2020–2025

    69.8 °F

  • Average High 2020–2025

    80.3 °F
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