Grassy Lake Weather Forecast

    • 74
    • 95

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 70
    • 93

    Mostly Sunny

    • 70
    • 92

    Partly Sunny

    • 70
    • 92

    Partly Sunny

    • 70
    • 92

    Partly Sunny

Today 22 Sep East Baton Rouge

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s. Northeast Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 107.

Tonight 22 Sep East Baton Rouge

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 70s. Northeast Winds around 5 Mph.

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Grassy Lake Temperature Statistics

September Temperature

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (9.9 miles)

  • Lowest 19 September, 2026

    69.1 °F

  • Average September

    83 °F

  • Highest 3 September, 2026

    96.7 °F

Climate (2021–2026)

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (9.9 miles)

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  • Average Low 2021–2026

    60.8 °F

  • Average 2021–2026

    71.1 °F

  • Average High 2021–2026

    81.9 °F
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