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United States weather

Weather in McAllen, Texas for August 2025

Your guide to McAllen weather in August - trends and predictions

    Temperatures

  • Until now, August 2025 in McAllen has been nearly identical to the historical average, with a temperature of 38.2 °F (showing only a slight deviation of 0 °F).

  • The forecast for the next days in McAllen predicts temperatures to be around 39 °F, close to the historical average.

  • In general, the average temperature in McAllen at the beginning of August is 38.9 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 38.6 °F by the end of August.

    • Rain 🌧️

  • McAllen experiences moderate rainfall in August, with an average of 8 rainy days and a total precipitation of 32.8 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
38°/26°
Temperatures
Average wind speed
29 km/h
Avg max wind
Average humidity
63 %
Avg humidity

McAllen Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
40°
2
Overcast
41°
3
Mist
40°
4
Overcast
40°
5
Thundery outbreaks possible
36°
6
Thundery outbreaks possible
36°
7
Overcast
39°
8
Cloudy
38°
9
Overcast
39°
10
Cloudy
37°
11
Overcast
37°
12
Partly cloudy
39°
13
Overcast
40°
14
Thundery outbreaks possible
39°
15
Light rain shower
33°
16
Overcast
36°
17
Cloudy
39°
18
Mist
38°
19
Partly cloudy
38°
20
Partly cloudy
36°
21
Sunny
41°
22
Partly cloudy
39°
23
Sunny
38°
24
Patchy rain possible
38°
25
Sunny
39°
26
Sunny
38°
27
Partly cloudy
38°
28
Partly cloudy
39°
29
Sunny
38°
30
Partly cloudy
39°
31
Partly cloudy
39°

Temperatures trend during August in McAllen

See the weather trend as well as the moving average line

August weather in McAllen day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Overcast
Overcast
 40° /26° 0 mm 9
Aug. 2 Overcast
Overcast
 41° /26° 0 mm 9
Aug. 3 Mist
Mist
 40° /25° 0 mm 9
Aug. 4 Overcast
Overcast
 40° /26° 0 mm 9
Aug. 5 Thundery outbreaks possible
Thundery outbreaks possible
 36° /26° 0 mm 8
Aug. 6 Thundery outbreaks possible
Thundery outbreaks possible
 36° /27° 0 mm 8
Aug. 7 Overcast
Overcast
 39° /26° 0 mm 8
Aug. 8 Cloudy
Cloudy
 38° /26° 0 mm 8
Aug. 9 Overcast
Overcast
 39° /26° 0 mm 8
Aug. 10 Cloudy
Cloudy
 37° /25° 0 mm 8
Aug. 11 Overcast
Overcast
 37° /26° 0 mm 8
Aug. 12 Partly cloudy
Partly cloudy
 39° /26° 0 mm 9
Aug. 13 Overcast
Overcast
 40° /26° 0 mm 9
Aug. 14 Thundery outbreaks possible
Thundery outbreaks possible
 39° /26° 0 mm 8
Aug. 15 Light rain shower
Light rain shower
 33° /27° 8.7 mm 7
Aug. 16 Overcast
Overcast
 36° /27° 0 mm 8
Aug. 17 Cloudy
Cloudy
 39° /27° 0 mm 8
Aug. 18 Mist
Mist
 38° /26° 0 mm 8
Aug. 19 Partly cloudy
Partly cloudy
 38° /27° 0 mm 9
Aug. 20 Partly cloudy
Partly cloudy
 36° /26° 0 mm 2.5
Aug. 21 Sunny
Sunny
 41° /25° 0 mm 2.6
Aug. 22 Partly cloudy
Partly cloudy
 39° /26° 0 mm 2.5
Aug. 23 Sunny
Sunny
 38° /28° 0 mm 2.6
Aug. 24 Patchy rain possible
Patchy rain possible
 38° /28° 3.1 mm 0
Aug. 25 Sunny
Sunny
 39° /28° 0 mm 8
Aug. 26 Sunny
Sunny
 38° /27° 0 mm 8
Aug. 27 Partly cloudy
Partly cloudy
 38° /28° 0 mm 8
Aug. 28 Partly cloudy
Partly cloudy
 39° /27° 0 mm 8
Aug. 29 Sunny
Sunny
 38° /27° 0 mm 8
Aug. 30 Partly cloudy
Partly cloudy
 39° /27° 0 mm 8
Aug. 31 Partly cloudy
Partly cloudy
 39° /27° 0 mm 8
Next
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.
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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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Location coordinates Where is McAllen?

Get accurate weather forecasts for McAllen, located at latitude 26.203 and longitude -98.23. Stay updated with localized weather information tailored for McAllen.

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