Slidell Weather Forecast

    • 76
    • 93

    Chance Rain Showers

    • 75
    • 94

    Chance Thunderstorms

    • 75
    • 95

    Chance Thunderstorms

    • 74
    • 93

    Chance Thunderstorms

    • 74
    • 94

    Chance Rain Showers

    • 75
    • 94

    Chance Rain Showers

Today 15 Aug Southeast St. Tammany

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the mid 90s. Northwest Winds around 5 Mph, becoming southwest in the afternoon. Chance of rain 30 percent. Heat index Values up to 107.

Tonight 15 Aug Southeast St. Tammany

Mostly clear. Near steady temperature in the upper 70s. West Winds around 5 Mph.

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Slidell Temperature Statistics

August Temperature

Slidell, Slidell Airport (5 miles)

  • Lowest 4 August, 2025

    71.7 °F

  • Average August

    82 °F

  • Highest 1 August, 2025

    92.6 °F

Climate (2020–Present)

Slidell, Slidell Airport (5 miles)

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  • Average Low 2020–2025

    59.9 °F

  • Average 2020–2025

    69.9 °F

  • Average High 2020–2025

    80.5 °F
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