The long-range forecast for Mcallen predicts a heatwave, with temperatures reaching up to 40°, significantly higher than typical for Mcallen for this time of the year and 3.9 °C above the historical average.
Select a month and click on a day for more information:
Thursday
Oct 1
38° / 26°
Friday
Oct 2
34° / 23°
Saturday
Oct 3
33° / 24°
Sunday
Oct 4
32° / 24°
Monday
Oct 5
32° / 25°
Tuesday
Oct 6
33° / 23°
Wednesday
Oct 7
31° / 23°
Thursday
Oct 8
30° / 22°
Friday
Oct 9
32° / 22°
Saturday
Oct 10
33° / 23°
Sunday
Oct 11
32° / 21°
Monday
Oct 12
33° / 21°
Tuesday
Oct 13
33° / 23°
Wednesday
Oct 14
33° / 23°
Thursday
Oct 15
33° / 23°
Friday
Oct 16
30° / 21°
Saturday
Oct 17
29° / 19°
Sunday
Oct 18
29° / 20°
Monday
Oct 19
31° / 21°
Tuesday
Oct 20
32° / 22°
Wednesday
Oct 21
32° / 23°
Thursday
Oct 22
32° / 22°
Friday
Oct 23
31° / 22°
Saturday
Oct 24
32° / 23°
Sunday
Oct 25
31° / 22°
Monday
Oct 26
31° / 23°
Tuesday
Oct 27
31° / 23°
Wednesday
Oct 28
31° / 22°
Thursday
Oct 29
30° / 19°
Friday
Oct 30
28° / 15°
Saturday
Oct 31
24° / 16°
Mcallen 30 days weather forecast
Check out our estimated 30 days weather forecast for Mcallen, this data is based on the average weather in Mcallen in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Mcallen next to the desired date.