McAllen Weather Forecast

    • 78
    • 93

    Chance Thunderstorms

    • 70
    • 88

    Thunderstorms

    • 72
    • 85

    Chance Thunderstorms

    • 73
    • 85

    Chance Thunderstorms

    • 73
    • 85

    Chance Thunderstorms

    • 74
    • 84

    Thunderstorms Likely

Today 18 May Southern Hidalgo

Partly sunny. Highs in the lower 90s. Southeast Winds 15 to 20 Mph. Highest heat index Readings around 110 in the afternoon.

Tonight 18 May Southern Hidalgo

Mostly cloudy. Slight chance of Showers and Thunderstorms in the Evening, then chance of Showers and Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall. Lows in the upper 70s. Southeast Winds 15 to 20 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McAllen Temperature Statistics

May Temperature

McAllen, Miller International Airport (1.2 miles)

  • Lowest 7 May, 2021

    62.1 °F
  • Average May

    77.7 °F
  • Highest 3 May, 2021

    99 °F

Climate (2010–Present)

McAllen, Miller International Airport (1.2 miles)

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  • Average Low 2010–Present

    67 °F
  • Average 2010–Present

    75.1 °F
  • Average High 2010–Present

    86.4 °F
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