Decatur Weather Forecast

    • 22
    • 38

    Increasing Clouds

    • 16
    • 42

    Mostly Cloudy

    • 9
    • 24

    Chance Snow Showers

    • 11
    • 31

    Partly Sunny

    • 19
    • 40

    Partly Sunny

    • 24
    • 45

    Mostly Cloudy

Today 29 Jan Meigs

Partly sunny. Highs around 40. Light Winds.

Tonight 29 Jan Meigs

Mostly clear and cold. Near steady temperature around 20. Light Winds.

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Decatur Temperature Statistics

January Temperature

Athens McMinn County Airport (14.9 miles)

  • Lowest 26 January, 2026

    12.2 °F

  • Average January

    40.5 °F

  • Highest 7 January, 2026

    68 °F

Climate (2021–Present)

Athens McMinn County Airport (14.9 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    59.9 °F

  • Average High 2021–2026

    71.6 °F
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