Charles R Johnson Airport Weather Forecast

    • 76
    • 82

    Increasing Clouds

    • 74
    • 80

    Chance Rain Showers

    • 73
    • 79

    Mostly Cloudy

    • 73
    • 80

    Mostly Sunny

    • 76
    • 81

    Partly Sunny

    • 78
    • 82

    Partly Sunny

Today 10 May Coastal Willacy

Patchy fog in the morning. Partly sunny. Humid with Highs in the upper 80s. Southeast Winds 10 to 15 Mph.

Tonight 10 May Coastal Willacy

Mostly cloudy. Patchy fog. Near steady temperature in the mid 70s. Southeast Winds around 5 Mph.

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Charles R Johnson Airport Temperature Statistics

May Temperature

Harlingen, Rio Grande Valley International Airport (26.1 miles)

  • Lowest 3 May, 2026

    56.6 °F

  • Average May

    76.8 °F

  • Highest 6 May, 2026

    96.7 °F

Climate (2021–Present)

Harlingen, Rio Grande Valley International Airport (26.1 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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