Mercedes Weather Forecast

    • 65
    • 101

    Hot

    • 56
    • 90

    Mostly Sunny

    • 52
    • 86

    Sunny

    • 61
    • 85

    Mostly Sunny

    • 65
    • 85

    Breezy

    • 58
    • 93

    Partly Sunny

Today 14 Mar Southern Hidalgo

Mostly sunny. Hot with Highs around 102. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west 5 to 10 Mph in the afternoon.

Tonight 14 Mar Southern Hidalgo

Mostly clear. Lows in the mid 60s. Southeast Winds 10 to 15 Mph, becoming south after midnight. Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercedes Temperature Statistics

March Temperature

Harlingen, Rio Grande Valley International Airport (16.8 miles)

  • Lowest 10 March, 2025

    46 °F

  • Average March

    69.6 °F

  • Highest 8 March, 2025

    98.1 °F

Climate (2020–Present)

Harlingen, Rio Grande Valley International Airport (16.8 miles)

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  • Average Low 2020–2025

    65.4 °F

  • Average 2020–2025

    75.1 °F

  • Average High 2020–2025

    85.9 °F
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