Mercedes District Settling Basin Weather Forecast

    • 79
    • 98

    Hot

    • 80
    • 98

    Hot

    • 79
    • 99

    Hot

    • 78
    • 100

    Hot

    • 79
    • 100

    Hot

    • 79
    • 101

    Hot

Today 27 Jul Southern Hidalgo

Sunny, hot. Near steady temperature in the upper 90s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Heat index Values up to 109.

Tonight 27 Jul Southern Hidalgo

Clear. Lows in the upper 70s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Heat index Values up to 105 early in the evening.

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Mercedes District Settling Basin Temperature Statistics

July Temperature

Harlingen, Rio Grande Valley International Airport (18.6 miles)

  • Lowest 22 July, 2026

    71.7 °F

  • Average July

    87 °F

  • Highest 22 July, 2026

    106.6 °F

Climate (2021–2026)

Harlingen, Rio Grande Valley International Airport (18.6 miles)

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  • Average Low 2021–2026

    65.8 °F

  • Average 2021–2026

    75.9 °F

  • Average High 2021–2026

    86.7 °F
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