Harriman Weather Forecast

    • 68
    • 86

    Chance Thunderstorms

    • 70
    • 89

    Becoming Sunny

    • 71
    • 90

    Chance Thunderstorms

    • 71
    • 89

    Thunderstorms Likely

    • 71
    • 88

    Thunderstorms Likely

    • 70
    • 89

    Chance Thunderstorms

    • 71
    • 90

    Slight Chance Thunderstorms

Today 14 Jul Roane

Partly sunny. A slight chance of Showers and Thunderstorms this Afternoon, then a chance of Showers and Thunderstorms late. Near steady temperature in the lower 80s. Light Winds. Chance of rain 50 percent.

Tonight 14 Jul Roane

Mostly cloudy this Evening, then becoming partly cloudy. Lows in the upper 60s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harriman Temperature Statistics

July Temperature

Oak Ridge (18.6 miles)

  • Lowest 4 July, 2026

    69.7 °F

  • Average July

    81.8 °F

  • Highest 2 July, 2026

    99.6 °F

Climate (2021–2026)

Oak Ridge (18.6 miles)

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  • Average Low 2021–2026

    50.9 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    71.5 °F
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