Santa Rosa Lake Weather Forecast

    • 64
    • 87

    Partly Sunny

    • 67
    • 85

    Becoming Sunny

    • 67
    • 87

    Partly Sunny

    • 57
    • 86

    Slight Chance Thunderstorms

    • 46
    • 67

    Chance Rain Showers

    • 45
    • 60

    Slight Chance Rain Showers

    • 49
    • 65

    Mostly Cloudy

Today 6 Jan Inland Willacy

Sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 6 Jan Inland Willacy

Partly cloudy. Lows in the mid 60s. South Winds 5 to 10 Mph.

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Santa Rosa Lake Temperature Statistics

January Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 1 January, 2026

    48.9 °F

  • Average January

    66.7 °F

  • Highest 3 January, 2026

    90 °F

Climate (2021–Present)

Harlingen, Rio Grande Valley International Airport (9.3 miles)

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  • Average Low 2021–2026

    65.6 °F

  • Average 2021–2026

    75.4 °F

  • Average High 2021–2026

    86.2 °F
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