Santa Rosa Lake Weather Forecast

    • 78
    • 99

    Hot

    • 78
    • 99

    Hot

    • 77
    • 99

    Hot

    • 76
    • 97

    Slight Chance Thunderstorms

    • 76
    • 96

    Mostly Sunny

    • 77
    • 96

    Mostly Sunny

Today 4 Aug Inland Willacy

Mostly sunny. Humid with Highs in the upper 90s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 112.

Tonight 4 Aug Inland Willacy

Partly cloudy. Near steady temperature in the upper 70s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Rosa Lake Temperature Statistics

August Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 2 August, 2026

    75.9 °F

  • Average August

    88.5 °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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