Weslaco Weather Forecast

    • 80
    • 99

    Hot

    • 79
    • 99

    Hot

    • 79
    • 99

    Hot

    • 78
    • 100

    Hot

    • 78
    • 99

    Hot

    • 77
    • 96

    Chance Thunderstorms

Today 12 Sep Southern Hidalgo

Sunny, hot with Highs around 102. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 114.

Tonight 12 Sep Southern Hidalgo

Mostly clear. Humid with Lows around 80. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 111 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Weslaco Temperature Statistics

September Temperature

McAllen, Miller International Airport (15.5 miles)

  • Lowest 5 September, 2026

    75.7 °F

  • Average September

    92.6 °F

  • Highest 2 September, 2026

    106.6 °F

Climate (2021–2026)

McAllen, Miller International Airport (15.5 miles)

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  • Average Low 2021–2026

    68.3 °F

  • Average 2021–2026

    78.1 °F

  • Average High 2021–2026

    88.8 °F
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