Johnston City Weather Forecast

    • 76
    • 99

    Hot

    • 75
    • 100

    Hot

    • 77
    • 100

    Hot

    • 75
    • 99

    Slight Chance Thunderstorms

    • 72
    • 97

    Hot

    • 68
    • 93

    Mostly Sunny

Today 1 Sep Williamson

Sunny, hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph.

Tonight 1 Sep Williamson

Clear. Near steady temperature in the mid 70s. South Winds around 5 Mph.

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Johnston City Temperature Statistics

September Temperature

Marion - Williamson County Regional Airport (5.6 miles)

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Climate (2021–2026)

Marion - Williamson County Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    68.1 °F
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