Sullivan City Weather Forecast

    • 74
    • 94

    Rain Showers Likely

    • 74
    • 95

    Chance Thunderstorms

    • 75
    • 96

    Chance Thunderstorms

    • 75
    • 96

    Chance Rain Showers

    • 75
    • 97

    Chance Rain Showers

    • 74
    • 98

    Chance Rain Showers

Today 17 Sep Southern Hidalgo

Mostly sunny. A slight chance of Showers and Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 90s. Northeast Winds 5 to 10 Mph, becoming east with Gusts up to 20 Mph this afternoon. Chance of rain 70 percent.

Tonight 17 Sep Southern Hidalgo

Partly cloudy with a slight chance of Showers and Thunderstorms. Lows in the mid 70s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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Sullivan City Temperature Statistics

September Temperature

McAllen, Miller International Airport (20.5 miles)

  • Lowest 8 September, 2025

    77 °F

  • Average September

    86.4 °F

  • Highest 4 September, 2025

    104 °F

Climate (2020–Present)

McAllen, Miller International Airport (20.5 miles)

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  • Average Low 2020–2025

    67.4 °F

  • Average 2020–2025

    76.9 °F

  • Average High 2020–2025

    87.7 °F
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