Slidell Weather Forecast

    • 53
    • 69

    Rain Showers Likely

    • 57
    • 61

    Rain Showers Likely

    • 64
    • 75

    Mostly Cloudy

    • 66
    • 79

    Slight Chance Thunderstorms

    • 59
    • 83

    Slight Chance Thunderstorms

    • 61
    • 81

    Chance Thunderstorms

Today 20 Apr Wise

Mostly cloudy. Highs in the upper 60s. South Winds 5 to 10 Mph.

Tonight 20 Apr Wise

Mostly cloudy. Showers likely with a chance of Thunderstorms after midnight. Lows in the lower 50s. South Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Slidell Temperature Statistics

April Temperature

Decatur, Decatur Municipal Airport (13 miles)

  • Lowest 5 April, 2026

    45 °F

  • Average April

    67.9 °F

  • Highest 13 April, 2026

    85.3 °F

Climate (2021–Present)

Decatur, Decatur Municipal Airport (13 miles)

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  • Average Low 2021–2026

    57.1 °F

  • Average 2021–2026

    67 °F

  • Average High 2021–2026

    77.5 °F
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