Heiskell Weather Forecast

    • 63
    • 82

    Chance Thunderstorms

    • 59
    • 81

    Rain Showers Likely

    • 53
    • 79

    Mostly Sunny

    • 54
    • 79

    Sunny

    • 58
    • 81

    Mostly Sunny

    • 61
    • 83

    Partly Sunny

Today 31 May Knox

Partly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Northeast Winds 10 Mph or less in the Morning, becoming light and variable. Chance of rain 30 percent.

Tonight 31 May Knox

Partly cloudy. Near steady temperature in the lower 60s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Heiskell Temperature Statistics

May Temperature

Oak Ridge (10.6 miles)

  • Lowest 3 May, 2026

    39.7 °F

  • Average May

    68.6 °F

  • Highest 18 May, 2026

    92.6 °F

Climate (2021–Present)

Oak Ridge (10.6 miles)

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  • Average Low 2021–2026

    50.8 °F

  • Average 2021–2026

    60.7 °F

  • Average High 2021–2026

    71.4 °F
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