Santa Rosa Lake Weather Forecast

    • 70
    • 85

    Rain Showers Likely

    • 64
    • 83

    Slight Chance Rain Showers

    • 67
    • 85

    Mostly Sunny

    • 68
    • 85

    Partly Sunny

    • 68
    • 84

    Mostly Cloudy

    • 67
    • 83

    Chance Rain Showers

Today 21 Oct Inland Willacy

Sunny in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the mid 80s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 21 Oct Inland Willacy

Mostly cloudy. A chance of Showers after midnight. Lows around 70. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Rosa Lake Temperature Statistics

October Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 18 October, 2026

    55.9 °F

  • Average October

    81.2 °F

  • Highest 1 October, 2026

    100 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (9.3 miles)

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  • Average Low 2021–2026

    65.9 °F

  • Average 2021–2026

    76.1 °F

  • Average High 2021–2026

    87 °F
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