Santa Rosa Lake Weather Forecast

    • 65
    • 84

    Increasing Clouds

    • 52
    • 77

    Chance Thunderstorms

    • 55
    • 65

    Mostly Cloudy

    • 64
    • 76

    Slight Chance Thunderstorms

    • 64
    • 79

    Partly Sunny

    • 62
    • 84

    Partly Sunny

Today 13 Dec Inland Willacy

Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 13 Dec Inland Willacy

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy dense fog after midnight. Lows in the mid 60s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Rosa Lake Temperature Statistics

December Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 9 December, 2025

    43 °F

  • Average December

    60.3 °F

  • Highest 7 December, 2025

    86 °F

Climate (2020–Present)

Harlingen, Rio Grande Valley International Airport (9.3 miles)

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  • Average Low 2020–2025

    65.5 °F

  • Average 2020–2025

    75.4 °F

  • Average High 2020–2025

    86.2 °F
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