Porter Lake Weather Forecast

    • 41
    • 71

    Becoming Sunny

    • 39
    • 66

    Sunny

    • 39
    • 70

    Mostly Sunny

    • 47
    • 67

    Mostly Cloudy

    • 50
    • 70

    Slight Chance Rain Showers

    • 51
    • 67

    Chance Rain Showers

Today 21 Oct Rhea

Mostly sunny. A slight chance of Showers early this afternoon. Highs in the upper 60s to lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 21 Oct Rhea

Mostly clear. Lows in the lower 40s. Light Winds.

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Porter Lake Temperature Statistics

October Temperature

Athens McMinn County Airport (21.1 miles)

  • Lowest 12 October, 2025

    46.4 °F

  • Average October

    65.9 °F

  • Highest 1 October, 2025

    86 °F

Climate (2020–Present)

Athens McMinn County Airport (21.1 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    59.9 °F

  • Average High 2020–2025

    71.6 °F
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