| NWS Forecast for: McAllen, Miller International Airport TX Issued by: National Weather Service Brownsville, TX Last Update: 12:30 pm CDT May 21, 2026 |  |
This Afternoon: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Mostly cloudy, with a high near 88. Southeast wind around 7 mph. Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 74. Southeast wind 5 to 7 mph becoming light and variable. Chance of precipitation is 30%. Friday: Mostly sunny, with a high near 92. Light east wind becoming southeast 5 to 9 mph in the morning. Friday Night: A chance of showers and thunderstorms. Increasing clouds, with a low around 76. Southeast wind 6 to 10 mph. Chance of precipitation is 30%. Saturday: A chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 91. South southeast wind 5 to 9 mph. Chance of precipitation is 60%. Saturday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. Southeast wind 3 to 8 mph. Chance of precipitation is 70%. Sunday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming south southeast 5 to 7 mph in the morning. Sunday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. East wind around 6 mph becoming calm in the evening. Memorial Day: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Calm wind becoming east around 6 mph in the afternoon. Monday Night: Partly cloudy, with a low around 75. Southeast wind 5 to 7 mph. Tuesday: Partly sunny, with a high near 91. Southeast wind 5 to 10 mph. Tuesday Night: Mostly cloudy, with a low around 78. Wednesday: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91. | |
| McAllen, Miller International Airport TX 26.18°N 98.26°W | |
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