Knoxville Weather Forecast

    • 47
    • 63

    Increasing Clouds

    • 49
    • 63

    Rain Showers Likely

    • 52
    • 62

    Rain Showers Likely

    • 55
    • 72

    Slight Chance Thunderstorms

    • 56
    • 79

    Partly Sunny

    • 60
    • 83

    Partly Sunny

Today 20 May Marion

Sunny. Highs in the lower 60s. North Winds 5 to 10 Mph.

Tonight 20 May Marion

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

May Temperature

Knoxville (1.2 miles)

  • Lowest 1 May, 2026

    35.6 °F

  • Average May

    61.4 °F

  • Highest 15 May, 2026

    84.2 °F

Climate (2021–Present)

Knoxville (1.2 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.8 °F
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