Blanco Tank Weather Forecast

    • 77
    • 106

    Hot

    • 76
    • 104

    Hot

    • 76
    • 102

    Hot

    • 76
    • 101

    Slight Chance Thunderstorms

    • 76
    • 102

    Slight Chance Thunderstorms

    • 75
    • 101

    Slight Chance Thunderstorms

Today 3 Sep McMullen

Sunny, hot with Highs around 106. South Winds 5 to 10 Mph, increasing to southeast 10 to 15 Mph this afternoon. Heat index Values up to 111.

Tonight 3 Sep McMullen

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 70s. Southeast Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph after midnight. Heat index Values up to 110 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Blanco Tank Temperature Statistics

September Temperature

Cotulla, Cotulla-La Salle County Airport (27.3 miles)

  • Lowest 1 September, 2026

    77 °F
  • Average September

    89.6 °F
  • Highest 1 September, 2026

    102.9 °F

Climate (2021–2026)

Cotulla, Cotulla-La Salle County Airport (27.3 miles)

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  • Average Low 2021–2026

    64.7 °F
  • Average 2021–2026

    76.3 °F
  • Average High 2021–2026

    88.6 °F
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