Slidell Weather Forecast

    • 63
    • 81

    Decreasing Clouds

    • 65
    • 81

    Mostly Sunny

    • 67
    • 83

    Chance Thunderstorms

    • 66
    • 84

    Chance Thunderstorms

    • 67
    • 85

    Slight Chance Thunderstorms

    • 69
    • 87

    Partly Sunny

Today 22 Apr Southeast St. Tammany

Mostly sunny. Highs in the lower 80s. Southeast Winds 10 to 15 Mph.

Tonight 22 Apr Southeast St. Tammany

Mostly cloudy and not as cool. Near steady temperature in the mid 60s. East Winds around 5 Mph.

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Slidell Temperature Statistics

April Temperature

Slidell, Slidell Airport (5 miles)

  • Lowest 7 April, 2026

    39.7 °F

  • Average April

    68.4 °F

  • Highest 4 April, 2026

    84.7 °F

Climate (2021–Present)

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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