Marietta Weather Forecast

    • 66
    • 87

    Mostly Sunny

    • 65
    • 89

    Mostly Sunny

    • 65
    • 89

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 67
    • 85

    Mostly Cloudy

    • 68
    • 86

    Slight Chance Thunderstorms

Today 18 Sep Robeson

Sunny. Highs in the upper 80s. Northeast Winds around 5 Mph, becoming northwest around 5 Mph in the afternoon.

Tonight 18 Sep Robeson

Mostly cloudy. Near steady temperature in the mid 60s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Marietta Temperature Statistics

September Temperature

Marion County Airport (17.4 miles)

  • Lowest 3 September, 2025

    55.4 °F

  • Average September

    70.4 °F

  • Highest 6 September, 2025

    91.4 °F

Climate (2020–Present)

Marion County Airport (17.4 miles)

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

  • Average Low 2020–2025

    53.2 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    73.7 °F
Get WillyWeather+ to remove ads