Lake Pontchartrain - Tchefuncta River Entrance Weather Forecast

    • 81
    • 88

    Rain Showers Likely

    • 80
    • 91

    Chance Thunderstorms

    • 80
    • 89

    Chance Thunderstorms

    • 81
    • 91

    Partly Sunny

    • 80
    • 92

    Mostly Sunny

    • 79
    • 93

    Partly Sunny

Today 18 Jun Southwestern St. Tammany

Showers with a chance of Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Some Thunderstorms may produce heavy rainfall this morning. Some Thunderstorms may produce heavy rainfall this afternoon. Highs around 90. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 80 percent. Heat index Values up to 109.

Tonight 18 Jun Southwestern St. Tammany

Mostly cloudy with a chance of Thunderstorms with a slight chance of Showers in the Evening, then partly cloudy after midnight. 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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Lake Pontchartrain - Tchefuncta River Entrance Temperature Statistics

June Temperature

Hammond, Hammond Municipal Airport (18 miles)

  • Lowest 5 June, 2026

    67.1 °F

  • Average June

    80 °F

  • Highest 13 June, 2026

    93.9 °F

Climate (2021–2026)

Hammond, Hammond Municipal Airport (18 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    68.5 °F

  • Average High 2021–2026

    79.4 °F
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