McAllen Weather Forecast
- 78
- 101
Hot
- 78
- 101
Slight Chance Thunderstorms
- 78
- 99
Chance Thunderstorms
- 79
- 100
Chance Thunderstorms
- 79
- 99
Chance Thunderstorms
- 79
- 98
Chance Thunderstorms
Today 18 Aug Southern Hidalgo
Sunny, hot with Highs around 100. Southeast Winds 5 to 10 Mph. Heat index Values up to 108.
Tonight 18 Aug Southern Hidalgo
Mostly clear. Lows in the upper 70s. Southeast Winds 5 to 10 Mph. Heat index Values up to 108 early this evening.
McAllen Temperature Statistics
August Temperature
McAllen, Miller International Airport (1.2 miles)
Lowest 15 August, 2025
76.6 °FAverage August
90.9 °FHighest 2 August, 2025
105.7 °F
Climate (2020–Present)
McAllen, Miller International Airport (1.2 miles)
Average Low 2020–2025
67.4 °FAverage 2020–2025
76.8 °FAverage High 2020–2025
87.6 °F