Santa Rosa Lake Weather Forecast

    • 75
    • 94

    Partly Sunny

    • 73
    • 95

    Partly Sunny

    • 73
    • 94

    Partly Sunny

    • 73
    • 91

    Mostly Cloudy

    • 63
    • 95

    Chance Thunderstorms

    • 60
    • 77

    Slight Chance Thunderstorms

    • 59
    • 79

    Partly Sunny

Today 27 Apr Inland Willacy

Mostly sunny. Near steady temperature in the lower 90s. Southeast Winds 15 to 20 Mph with Gusts up to 25 Mph. Heat index Values up to 107.

Tonight 27 Apr Inland Willacy

Partly cloudy in the Evening, then becoming mostly cloudy. Humid with Lows in the mid 70s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Rosa Lake Temperature Statistics

April Temperature

Harlingen, Rio Grande Valley International Airport (9.3 miles)

  • Lowest 7 April, 2026

    52.6 °F

  • Average April

    76.2 °F

  • Highest 2 April, 2026

    92.6 °F

Climate (2021–Present)

Harlingen, Rio Grande Valley International Airport (9.3 miles)

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  • Average Low 2021–2026

    65.7 °F

  • Average 2021–2026

    75.7 °F

  • Average High 2021–2026

    86.5 °F
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