Decatur Weather Forecast

    • 72
    • 92

    Chance Thunderstorms

    • 68
    • 89

    Chance Thunderstorms

    • 68
    • 84

    Chance Thunderstorms

    • 64
    • 83

    Rain Showers Likely

    • 66
    • 85

    Chance Thunderstorms

    • 66
    • 85

    Chance Thunderstorms

Today 31 Jul Meigs

Partly sunny. A slight chance of Showers and Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Light Winds. Chance of rain 50 percent. Heat index Values around 106.

Tonight 31 Jul Meigs

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Humid with Lows in the lower 70s. Light Winds. Chance of rain 20 percent.

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Decatur Temperature Statistics

July Temperature

Athens McMinn County Airport (14.9 miles)

  • Lowest 3 July, 2025

    66.2 °F

  • Average July

    80.4 °F

  • Highest 15 July, 2025

    95 °F

Climate (2020–Present)

Athens McMinn County Airport (14.9 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    59.9 °F

  • Average High 2020–2025

    71.5 °F
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