Porter Lake Weather Forecast

    • 68
    • 85

    Rain Showers

    • 68
    • 90

    Partly Sunny

    • 67
    • 91

    Mostly Sunny

    • 68
    • 93

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

    • 70
    • 93

    Slight Chance Thunderstorms

Today 12 Sep Rhea

Mostly cloudy with a chance of Showers and Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Humid with Highs in the lower to mid 80s. Light Winds. Chance of rain 80 percent.

Tonight 12 Sep Rhea

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the upper 60s. Light Winds. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Porter Lake Temperature Statistics

September Temperature

Athens McMinn County Airport (21.1 miles)

  • Lowest 9 September, 2026

    64.4 °F

  • Average September

    80.6 °F

  • Highest 2 September, 2026

    96.8 °F

Climate (2021–2026)

Athens McMinn County Airport (21.1 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    72.1 °F
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