Slidell Weather Forecast

    • 79
    • 90

    Rain Showers Likely

    • 78
    • 94

    Chance Thunderstorms

    • 77
    • 92

    Chance Thunderstorms

    • 79
    • 92

    Partly Sunny

    • 78
    • 95

    Mostly Sunny

    • 77
    • 95

    Slight Chance Thunderstorms

Today 18 Jun Southeast St. Tammany

Showers and Thunderstorms likely. Some Thunderstorms may produce heavy rainfall. Highs around 90. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 70 percent. Heat index Values up to 108.

Tonight 18 Jun Southeast St. Tammany

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Some Thunderstorms may produce heavy rainfall in the evening. Humid with Lows around 80. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening. Chance of rain 50 percent. Heat index Values up to 106 early in the evening.

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Slidell Temperature Statistics

June Temperature

Slidell, Slidell Airport (5 miles)

  • Lowest 4 June, 2026

    66.7 °F

  • Average June

    80.3 °F

  • Highest 14 June, 2026

    93.7 °F

Climate (2021–2026)

Slidell, Slidell Airport (5 miles)

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  • Average Low 2021–2026

    59.9 °F

  • Average 2021–2026

    70.1 °F

  • Average High 2021–2026

    80.8 °F
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