Santa Rosa Lake Weather Forecast

    • 77
    • 98

    Hot

    • 78
    • 99

    Hot

    • 79
    • 99

    Hot

    • 79
    • 97

    Slight Chance Thunderstorms

    • 77
    • 98

    Hot

    • 76
    • 97

    Hot

Today 11 Aug Inland Willacy

Sunny. Highs in the upper 90s. Southeast Winds 15 to 20 Mph with Gusts up to 25 Mph. Heat index Values up to 112.

Tonight 11 Aug Inland Willacy

Mostly clear. Humid with Lows in the upper 70s. Southeast Winds 15 to 20 Mph, Diminishing to 5 to 10 Mph after midnight. Heat index Values up to 108 early in the evening.

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  • Temperature Real-Time

Santa Rosa Lake Temperature Statistics

August Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 3 August, 2026

    73.7 °F

  • Average August

    88.7 °F

  • Highest 1 August, 2026

    102.7 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (9.3 miles)

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  • Average Low 2021–2026

    65.8 °F

  • Average 2021–2026

    75.9 °F

  • Average High 2021–2026

    86.8 °F
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