McAllen (TX)
August
Weather in McAllen, Texas for August 2026
Your guide to McAllen weather in August - trends and predictions
In general, the average temperature in McAllen at the beginning of August is 38.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 36.1 °F by the end of August.
McAllen experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 32.8 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
38°/26°
Temperatures
29 km/h
Avg max wind
63 %
Avg humidity
McAllen Weather August
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Temperatures trend during August in McAllen
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August weather in McAllen day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Overcast | 40° /26° | 0 mm | 9 | |
| Aug. 2 | Overcast | 41° /26° | 0 mm | 9 | |
| Aug. 3 |  Mist | 40° /25° | 0 mm | 9 | |
| Aug. 4 | Overcast | 40° /26° | 0 mm | 9 | |
| Aug. 5 |  Thundery outbreaks possible | 36° /26° | 0 mm | 8 | |
| Aug. 6 | Thundery outbreaks possible | 36° /27° | 0 mm | 8 | |
| Aug. 7 | Overcast | 39° /26° | 0 mm | 8 | |
| Aug. 8 |  Cloudy | 38° /26° | 0 mm | 8 | |
| Aug. 9 | Overcast | 39° /26° | 0 mm | 8 | |
| Aug. 10 | Cloudy | 37° /25° | 0 mm | 8 | |
| Aug. 11 | Overcast | 37° /26° | 0 mm | 8 | |
| Aug. 12 |  Partly cloudy | 39° /26° | 0 mm | 9 | |
| Aug. 13 | Overcast | 40° /26° | 0 mm | 9 | |
| Aug. 14 | Thundery outbreaks possible | 39° /26° | 0 mm | 8 | |
| Aug. 15 |  Light rain shower | 33° /27° | 8.7 mm | 7 | |
| Aug. 16 | Overcast | 36° /27° | 0 mm | 8 | |
| Aug. 17 | Cloudy | 39° /27° | 0 mm | 8 | |
| Aug. 18 | Mist | 38° /26° | 0 mm | 8 | |
| Aug. 19 | Partly cloudy | 38° /26° | 0 mm | 9 | |
| Aug. 20 |  Sunny | 38° /26° | 0 mm | 9 | |
| Aug. 21 | Sunny | 40° /26° | 0 mm | 10 | |
| Aug. 22 | Sunny | 39° /26° | 0 mm | 9 | |
| Aug. 23 | Partly cloudy | 36° /26° | 3.2 mm | 8 | |
| Aug. 24 | Patchy rain possible | 34° /25° | 15.9 mm | 8 | |
| Aug. 25 | Cloudy | 35° /25° | 2.3 mm | 8 | |
| Aug. 26 | Patchy rain possible | 36° /26° | 1.3 mm | 8 | |
| Aug. 27 |  Moderate or heavy rain shower | 35° /26° | 1.9 mm | 8 | |
| Aug. 28 | Moderate or heavy rain shower | 36° /26° | 3.1 mm | 8 | |
| Aug. 29 |  Heavy rain at times | 37° /26° | 1 mm | 9 | |
| Aug. 30 | Patchy rain possible | 37° /26° | 1.1 mm | 8 | |
| Aug. 31 | Patchy rain possible | 37° /27° | 3.9 mm | 9 | |
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Important Notice
Our weather forecast for McAllen in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the McAllen forecast closer to your planned date for the most up-to-date weather information.
Change Month
McAllen in August - FAQ
What are the expected maximum and minimum temperatures in McAllen during August?
With daytime temperatures soaring above 38° and not dropping much below 26° at night, August in McAllen is quite hot. Staying hydrated and avoiding peak sun hours is advisable.
How much rainfall should be expected in McAllen during August?
In August, McAllen can expect light to moderate rainfall, totaling 32.8 mm across approximately 8 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in McAllen during August?
The average wind speed in McAllen during August is 29 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in McAllen
Explore the daily rainfall trends and prepare for McAllens August weather 💧
UV exposure in McAllen during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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