Bluebonnet Lake Weather Forecast

    • 79
    • 97

    Hot

    • 77
    • 94

    Chance Thunderstorms

    • 76
    • 91

    Rain Showers Likely

    • 77
    • 94

    Partly Sunny

    • 76
    • 94

    Partly Sunny

    • 75
    • 92

    Slight Chance Thunderstorms

Today 18 Jun Caldwell

Partly cloudy this Morning, then clearing. Highs in the upper 90s. South Winds 10 to 15 Mph. Highest heat index Readings up to 116.

Tonight 18 Jun Caldwell

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the upper 70s. Southeast Winds 10 to 15 Mph. Highest heat index Readings up to 111 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bluebonnet Lake Temperature Statistics

June Temperature

San Marcos, San Marcos Municipal Airport (4.3 miles)

  • Lowest 1 June, 2026

    69.1 °F

  • Average June

    80.7 °F

  • Highest 12 June, 2026

    93.9 °F

Climate (2021–2026)

San Marcos, San Marcos Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    70.7 °F

  • Average High 2021–2026

    82.4 °F
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