Smyrna Weather Forecast

    • 66
    • 87

    Slight Chance Thunderstorms

    • 65
    • 88

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 65
    • 90

    Partly Sunny

    • 65
    • 86

    Mostly Sunny

    • 66
    • 84

    Partly Sunny

    • 66
    • 85

    Slight Chance Thunderstorms

Today 17 Sep Cobb

Sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. Light northwest Winds. Chance of rain 20 percent.

Tonight 17 Sep Cobb

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 60s. Light north Winds this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Smyrna Temperature Statistics

September Temperature

Marietta / Dobbins Air Force Base (1.9 miles)

  • Lowest 10 September, 2025

    59 °F

  • Average September

    73.8 °F

  • Highest 5 September, 2025

    90.3 °F

Climate (2020–Present)

Marietta / Dobbins Air Force Base (1.9 miles)

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  • Average Low 2020–2025

    53.7 °F

  • Average 2020–2025

    62.7 °F

  • Average High 2020–2025

    72.6 °F
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