Johnson City Weather Forecast

    • 73
    • 97

    Chance Thunderstorms

    • 72
    • 96

    Slight Chance Thunderstorms

    • 72
    • 95

    Slight Chance Thunderstorms

    • 73
    • 95

    Partly Sunny

    • 71
    • 94

    Partly Sunny

    • 71
    • 93

    Partly Sunny

    • 71
    • 94

    Partly Sunny

Today 20 Sep Blanco

Mostly cloudy. Near steady temperature in the lower 90s. South Winds around 5 Mph.

Tonight 20 Sep Blanco

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnson City Temperature Statistics

September Temperature

Horseshoe Bay Resort Airpark (17.4 miles)

  • Lowest 18 September, 2026

    68.9 °F

  • Average September

    85.4 °F

  • Highest 2 September, 2026

    101.7 °F

Climate (2021–2026)

Horseshoe Bay Resort Airpark (17.4 miles)

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    70 °F

  • Average High 2021–2026

    82.5 °F
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