Big Branch Marsh National Wildlife Refuge Weather Forecast

    • 44
    • 67

    Sunny

    • 41
    • 64

    Mostly Sunny

    • 49
    • 66

    Mostly Sunny

    • 53
    • 71

    Mostly Cloudy

    • 55
    • 71

    Slight Chance Thunderstorms

    • 54
    • 74

    Slight Chance Rain Showers

Today 6 Feb Southwestern St. Tammany

Sunny. Not as cool with Highs around 70. West Winds 5 to 10 Mph.

Tonight 6 Feb Southwestern St. Tammany

Clear. Lows in the lower 40s. West Winds around 5 Mph, becoming north after midnight.

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Big Branch Marsh National Wildlife Refuge Temperature Statistics

February Temperature

Slidell, Slidell Airport (6.2 miles)

  • Lowest 1 February, 2026

    18 °F

  • Average February

    42.4 °F

  • Highest 3 February, 2026

    70 °F

Climate (2021–Present)

Slidell, Slidell Airport (6.2 miles)

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  • Average Low 2021–2026

    59.8 °F

  • Average 2021–2026

    69.9 °F

  • Average High 2021–2026

    80.5 °F
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