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Hourly Forecast
Daylight Hours
07:23
Sunrise
19:30
Sunset
Moon
Waxing Crescent
12:33
Moonrise
22:19
Moonset
Daily Forecast
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Air Quality Data Available
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UV Index
Humidity
Weather in McAllen today, September 16, 2026
McAllen stays under cloudy skies on September 16, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The morning sky stays heavily clouded, with cover near 100% around 07:00. Grey conditions set the early tone before any later change.
The day peaks near 37°C and cools toward 26°C. Expect humidity between 36% and 91%, most humid near 07:00. Airflow remains manageable, reaching about 6.8 km/h around 16:00.
Through the afternoon cloud remains the main feature, with cover near 100% around 13:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 15.9 km, briefly nearer 13.9 km. Daylight runs from 07:23 to 19:30, lasting 12 hours 7 minutes of sunlight today.
In short, cloud leads the story in McAllen on September 16, 2026; expect limited sun and a peak around 37°C.
Frequently asked questions about weather in McAllen
How warm does it get in McAllen?
The warmest month in McAllen is August, with average high temperatures of 37°C. The average temperature during this period is around 31°C.
How cold does it get in McAllen?
The coldest month in McAllen is January, with average low temperatures of 12°C. The average temperature during this period is around 16°C.
What is the wettest time of year in McAllen?
The wettest month in McAllen is September, with an average of 81mm of precipitation.
What is the driest time of year in McAllen?
The driest month in McAllen is February, with an average of 18mm of precipitation.
