Weather · August
Average highs of 100°F, lows of 79°F and 1.8 in of rain, from 30 years of weather records.
August is McAllen’s warmest month, with average highs of 100°F and lows of 79°F. That is 1° warmer than July, and 12° above the yearly average high.
High and low Rain
A look around town before you go.
A DRIVE AROUND TOWN
Mileage Mike Travels’ recorded May 2023 drive through McAllen, with sampled scenes on Jackson Avenue and South and North 10th Street. It is not a live traffic camera; streets and businesses may have changed.
Watch on YouTube ↗
THINGS TO DO · YOUTUBE SHORT
RGV TASTE’s short Mercado District clip shows an indoor food-vendor counter. Check the food hall’s current vendors and hours rather than relying on this earlier recording.
Watch on YouTube ↗Planning a trip? See the best time to visit McAllen and today’s forecast.
Average highs are 100°F and average lows 79°F, for a daily mean of 89°F. Individual days run hotter or colder than these 30-year averages.
August averages 1.8 in of precipitation over about 5 days with at least 0.01 in. It is the 6th wettest month of the year.
Around mid-August the sun rises about 7:05 AM and sets about 8:09 PM, for roughly 13.1 hours of daylight.
The mildest months for visiting are January, February, December. August is hot.
NOAA U.S. Climate Normals 1991–2020, Mcallen Miller Intl Ap station (2.9 mi from downtown). Sunrise and sunset are calculated for August 15 at the city’s coordinates.