Harriman Weather Forecast

    • 57
    • 84

    Increasing Clouds

    • 42
    • 68

    Partly Sunny

    • 47
    • 66

    Mostly Cloudy

    • 50
    • 67

    Mostly Cloudy

    • 55
    • 77

    Slight Chance Rain Showers

    • 43
    • 76

    Chance Rain Showers

Today 22 Mar Roane

Mostly sunny. Highs in the lower 80s. Southwest Winds 10 Mph or less with Gusts up to 20 Mph.

Tonight 22 Mar Roane

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Harriman Temperature Statistics

March Temperature

Oak Ridge (18.6 miles)

  • Lowest 17 March, 2026

    27.6 °F

  • Average March

    57.2 °F

  • Highest 6 March, 2026

    82.9 °F

Climate (2021–Present)

Oak Ridge (18.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    50.7 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    71.1 °F
Get WillyWeather+ to remove ads