Slidell Weather Forecast

    • 30
    • 59

    Mostly Sunny

    • 24
    • 46

    Partly Sunny

    • 41
    • 50

    Partly Sunny

    • 36
    • 58

    Partly Sunny

    • 42
    • 57

    Partly Sunny

    • 41
    • 66

    Mostly Cloudy

Today 18 Jan Wise

Sunny. Not as cool with Highs in the lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 18 Jan Wise

Mostly clear. Not as cool with Lows in the upper 20s. North Winds around 5 Mph, becoming northeast after midnight.

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Slidell Temperature Statistics

January Temperature

Decatur, Decatur Municipal Airport (13 miles)

  • Lowest 15 January, 2026

    30.9 °F

  • Average January

    54.9 °F

  • Highest 7 January, 2026

    77.7 °F

Climate (2021–Present)

Decatur, Decatur Municipal Airport (13 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    66.8 °F

  • Average High 2021–2026

    77.2 °F
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