Donaldsonville Weather Forecast

    • 76
    • 94

    Chance Thunderstorms

    • 76
    • 95

    Slight Chance Thunderstorms

    • 76
    • 96

    Mostly Sunny

    • 74
    • 93

    Chance Thunderstorms

    • 72
    • 92

    Mostly Sunny

    • 73
    • 92

    Chance Thunderstorms

Today 13 Sep Western Ascension

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the mid 90s. Light and variable Winds. Chance of rain 20 percent. Heat index Values up to 108.

Tonight 13 Sep Western Ascension

Mostly clear. Humid with Lows in the mid 70s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Donaldsonville Temperature Statistics

September Temperature

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (31.1 miles)

  • Lowest 8 September, 2026

    72 °F

  • Average September

    82.9 °F

  • Highest 3 September, 2026

    96.7 °F

Climate (2021–2026)

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (31.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    60.8 °F

  • Average 2021–2026

    71 °F

  • Average High 2021–2026

    81.8 °F
Get WillyWeather+ to remove ads