Charles R Johnson Airport Weather Forecast

    • 67
    • 78

    Becoming Sunny

    • 68
    • 78

    Mostly Sunny

    • 67
    • 79

    Mostly Sunny

    • 66
    • 76

    Partly Sunny

    • 66
    • 76

    Mostly Sunny

    • 67
    • 77

    Mostly Sunny

Today 25 Mar Coastal Willacy

Sunny. Highs in the mid 80s. Southeast Winds 15 to 20 Mph with Gusts up to 25 Mph.

Tonight 25 Mar Coastal Willacy

Mostly clear. Lows in the mid 60s. Southeast Winds 15 to 20 Mph, Diminishing to 5 to 10 Mph after midnight.

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Charles R Johnson Airport Temperature Statistics

March Temperature

Harlingen, Rio Grande Valley International Airport (26.1 miles)

  • Lowest 17 March, 2026

    43.6 °F

  • Average March

    74.2 °F

  • Highest 11 March, 2026

    98.7 °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

    75.6 °F

  • Average High 2021–2026

    86.5 °F
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