Sebastian Weather Forecast

    • 71
    • 88

    Chance Thunderstorms

    • 71
    • 88

    Slight Chance Thunderstorms

    • 77
    • 90

    Chance Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

    • 73
    • 91

    Partly Sunny

    • 73
    • 91

    Partly Sunny

Today 24 May Inland Willacy

Sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 80s. Northeast Winds 10 to 15 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 24 May Inland Willacy

Partly cloudy. Lows in the lower 70s. Northeast Winds 10 to 15 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sebastian Temperature Statistics

May Temperature

Harlingen, Rio Grande Valley International Airport (11.2 miles)

  • Lowest 3 May, 2026

    56.6 °F

  • Average May

    79.9 °F

  • Highest 6 May, 2026

    96.7 °F

Climate (2021–Present)

Harlingen, Rio Grande Valley International Airport (11.2 miles)

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  • Average Low 2021–2026

    65.7 °F

  • Average 2021–2026

    75.8 °F

  • Average High 2021–2026

    86.6 °F
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