Rio Grande City Municipal Airport Weather Forecast

    • 77
    • 101

    Hot

    • 77
    • 102

    Hot

    • 78
    • 102

    Hot

    • 79
    • 103

    Hot

    • 79
    • 103

    Chance Rain Showers

    • 76
    • 99

    Chance Rain Showers

Today 26 Sep Starr

Mostly sunny. Hot with Highs around 100. East Winds 5 to 10 Mph. Heat index Values up to 109.

Tonight 26 Sep Starr

Mostly clear. Lows in the mid 70s. Southeast Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Real-Time

Rio Grande City Municipal Airport Temperature Statistics

September Temperature

McAllen, Miller International Airport (40.4 miles)

  • Lowest 5 September, 2026

    75.7 °F

  • Average September

    92.7 °F

  • Highest 10 September, 2026

    107.7 °F

Climate (2021–2026)

McAllen, Miller International Airport (40.4 miles)

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  • Average Low 2021–2026

    68.4 °F

  • Average 2021–2026

    78.2 °F

  • Average High 2021–2026

    88.9 °F
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