Mercedes Weather Forecast

    • 78
    • 95

    Mostly Sunny

    • 77
    • 95

    Mostly Sunny

    • 77
    • 95

    Mostly Sunny

    • 78
    • 95

    Mostly Sunny

    • 78
    • 95

    Sunny

    • 79
    • 96

    Mostly Sunny

Today 22 Jun Southern Hidalgo

Sunny. Near steady temperature in the mid 90s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 109.

Tonight 22 Jun Southern Hidalgo

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the upper 70s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 106 early in the evening.

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Mercedes Temperature Statistics

June Temperature

Harlingen, Rio Grande Valley International Airport (16.8 miles)

  • Lowest 3 June, 2026

    73.7 °F

  • Average June

    84.6 °F

  • Highest 18 June, 2026

    100.7 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (16.8 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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