Port Mansfield Weather Forecast

    • 66
    • 75

    Mostly Sunny

    • 67
    • 75

    Partly Sunny

    • 68
    • 76

    Mostly Sunny

    • 68
    • 77

    Partly Sunny

    • 57
    • 76

    Chance Rain Showers

    • 48
    • 63

    Slight Chance Rain Showers

Today 24 Dec Coastal Willacy

Areas of fog in the morning. Mostly sunny. Highs in the upper 70s. East Winds 5 to 10 Mph.

Tonight 24 Dec Coastal Willacy

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog in the Evening, then Areas of fog after midnight. Lows in the mid 60s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Mansfield Temperature Statistics

December Temperature

Harlingen, Rio Grande Valley International Airport (26.1 miles)

  • Lowest 9 December, 2025

    43 °F

  • Average December

    63.6 °F

  • Highest 7 December, 2025

    86 °F

Climate (2020–Present)

Harlingen, Rio Grande Valley International Airport (26.1 miles)

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  • Average Low 2020–2025

    65.6 °F

  • Average 2020–2025

    75.4 °F

  • Average High 2020–2025

    86.2 °F
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