Mercedes Weather Forecast

    • 71
    • 89

    Slight Chance Thunderstorms

    • 72
    • 89

    Partly Sunny

    • 71
    • 92

    Mostly Sunny

    • 72
    • 89

    Mostly Sunny

    • 74
    • 93

    Mostly Sunny

    • 69
    • 91

    Partly Sunny

Today 21 Oct Southern Hidalgo

Partly cloudy. Slight chance of Showers in the Morning, then slight chance of Showers and Thunderstorms early in the afternoon. Highs around 90. Light Winds becoming east 10 to 15 Mph in the late morning and afternoon. Chance of precipitation 20 percent.

Tonight 21 Oct Southern Hidalgo

Partly cloudy. Lows in the lower 70s. East Winds around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mercedes Temperature Statistics

October Temperature

Harlingen, Rio Grande Valley International Airport (16.8 miles)

  • Lowest 1 October, 2020

    60.1 °F
  • Average October

    76.8 °F
  • Highest 10 October, 2020

    97 °F

Climate (2010–Present)

Harlingen, Rio Grande Valley International Airport (16.8 miles)

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  • Average Low 2010–Present

    66.3 °F
  • Average 2010–Present

    74.8 °F
  • Average High 2010–Present

    85.8 °F
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