Cosby Weather Forecast

    • 61
    • 78

    Mostly Sunny

    • 62
    • 82

    Mostly Sunny

    • 62
    • 84

    Mostly Sunny

    • 62
    • 84

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 63
    • 82

    Partly Sunny

    • 63
    • 81

    Slight Chance Thunderstorms

Today 17 Sep Cocke Smoky Mountains

Mostly sunny. Highs in the mid 60s to upper 70s. Light Winds.

Tonight 17 Sep Cocke Smoky Mountains

Mostly clear. Lows in the 50s to lower 60s. Light Winds.

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Cosby Temperature Statistics

September Temperature

Sevierville Gatlinburg - Pigeon Forge Airport (16.2 miles)

  • Lowest 8 September, 2025

    51.8 °F
  • Average September

    68.9 °F
  • Highest 5 September, 2025

    87.8 °F

Climate (2020–Present)

Sevierville Gatlinburg - Pigeon Forge Airport (16.2 miles)

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  • Average Low 2020–2025

    48.5 °F
  • Average 2020–2025

    59.4 °F
  • Average High 2020–2025

    71.5 °F
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