Mercedes Weather Forecast

    • 67
    • 96

    Increasing Clouds

    • 65
    • 101

    Hot

    • 57
    • 90

    Sunny

    • 54
    • 85

    Sunny

    • 60
    • 84

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

Today 13 Mar Southern Hidalgo

Partly sunny this Morning, then clearing. Patchy fog this morning. Highs in the upper 90s. Southwest Winds around 5 Mph, becoming east this afternoon.

Tonight 13 Mar Southern Hidalgo

Clear in the Evening, then becoming mostly cloudy. Lows in the mid 60s. Southeast Winds 10 to 15 Mph with 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

    70 °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

    65.5 °F

  • Average 2020–2025

    75.1 °F

  • Average High 2020–2025

    85.9 °F
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