Cat Island Lake Weather Forecast

    • 75
    • 98

    Slight Chance Thunderstorms

    • 75
    • 98

    Hot

    • 75
    • 97

    Hot

    • 74
    • 97

    Hot

    • 71
    • 97

    Hot

    • 71
    • 97

    Hot

Today 13 Sep Bossier

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Hot with Highs in the upper 90s. Southwest Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 105 this afternoon.

Tonight 13 Sep Bossier

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph.

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  • Temperature Real-Time

Cat Island Lake Temperature Statistics

September Temperature

Shreveport, Shreveport Downtown Airport (8.7 miles)

  • Lowest 5 September, 2026

    73.9 °F

  • Average September

    86 °F

  • Highest 7 September, 2026

    98.1 °F

Climate (2021–2026)

Shreveport, Shreveport Downtown Airport (8.7 miles)

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  • Average Low 2021–2026

    59.6 °F

  • Average 2021–2026

    69.2 °F

  • Average High 2021–2026

    79.2 °F
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