McAllen (TX)
May
Weather in McAllen, Texas for May 2026
Your guide to McAllen weather in May - trends and predictions
In general, the average temperature in McAllen at the beginning of May is 31.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 34.7 °F by the end of May.
The climate of McAllen in May is notably wet, with an average of 12 rainy days, and a total of 54.5 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
34°/24°
Temperatures
26 km/h
Avg max wind
76 %
Avg humidity
McAllen Weather May
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Temperatures trend during May in McAllen
See the weather trend as well as the moving average line
May weather in McAllen day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 |  Patchy rain possible | 33° /23° | 0.8 mm | 7 | |
| May 2 | Patchy rain possible | 33° /24° | 0.5 mm | 7 | |
| May 3 |  Moderate or heavy rain shower | 29° /23° | 6.2 mm | 6 | |
| May 4 | Moderate rain at times | 27° /22° | 2.8 mm | 6 | |
| May 5 | Patchy rain possible | 31° /23° | 0.8 mm | 7 | |
| May 6 | Moderate rain at times | 33° /24° | 1.2 mm | 7 | |
| May 7 | Patchy rain possible | 33° /24° | 2.1 mm | 7 | |
| May 8 | Moderate or heavy rain shower | 29° /23° | 22.6 mm | 6 | |
| May 9 | Patchy rain possible | 27° /20° | 5 mm | 6 | |
| May 10 |  Cloudy | 29° /19° | 0 mm | 6 | |
| May 11 | Cloudy | 32° /18° | 0 mm | 7 | |
| May 12 |  Sunny | 36° /17° | 0 mm | 9 | |
| May 13 |  Overcast | 36° /22° | 0 mm | 8 | |
| May 14 | Overcast | 36° /22° | 0 mm | 8 | |
| May 15 |  Partly cloudy | 36° /24° | 0 mm | 9 | |
| May 16 | Overcast | 35° /25° | 0 mm | 8 | |
| May 17 | Overcast | 35° /25° | 0 mm | 8 | |
| May 18 | Patchy rain possible | 35° /25° | 0.2 mm | 8 | |
| May 19 | Overcast | 37° /25° | 0 mm | 8 | |
| May 20 | Overcast | 36° /25° | 0 mm | 8 | |
| May 21 | Moderate or heavy rain shower | 35° /25° | 8.2 mm | 8 | |
| May 22 | Moderate or heavy rain shower | 35° /25° | 3.7 mm | 8 | |
| May 23 | Patchy rain possible | 35° /24° | 0.4 mm | 8 | |
| May 24 | Overcast | 35° /25° | 0 mm | 8 | |
| May 25 | Overcast | 34° /26° | 0 mm | 7 | |
| May 26 | Overcast | 36° /26° | 0 mm | 8 | |
| May 27 | Overcast | 36° /25° | 0 mm | 8 | |
| May 28 |  Thundery outbreaks possible | 37° /26° | 0 mm | 8 | |
| May 29 | Overcast | 35° /26° | 0 mm | 8 | |
| May 30 | Overcast | 34° /26° | 0 mm | 7 | |
| May 31 | Overcast | 31° /25° | 0 mm | 7 | |
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Important Notice
Our weather forecast for McAllen in May 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 May - FAQ
What are the expected maximum and minimum temperatures in McAllen during May?
During May, expect a variety of temperatures with highs around 34° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in McAllen during May?
Moderate rainfall is anticipated in McAllen during May, with a total of 54.5 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in McAllen during May?
The average wind speed in McAllen during May is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
May rainfall patterns in McAllen
Explore the daily rainfall trends and prepare for McAllens May weather 💧
UV exposure in McAllen during May
Stay informed about UV levels for safe outdoor activities throughout the month of May ☀️
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