The long-range forecast for Mcallen predicts a heatwave, with temperatures reaching up to 33°, significantly higher than typical for Mcallen for this time of the year and 3.4 °C above the historical average.
Select a month and click on a day for more information:
Monday
Dec 1
20° / 15°
Tuesday
Dec 2
23° / 16°
Wednesday
Dec 3
23° / 15°
Thursday
Dec 4
23° / 16°
Friday
Dec 5
22° / 10°
Saturday
Dec 6
20° / 15°
Sunday
Dec 7
32° / 17°
Monday
Dec 8
21° / 13°
Tuesday
Dec 9
24° / 14°
Wednesday
Dec 10
31° / 18°
Thursday
Dec 11
33° / 19°
Friday
Dec 12
26° / 18°
Saturday
Dec 13
27° / 20°
Sunday
Dec 14
31° / 22°
Monday
Dec 15
32° / 23°
Tuesday
Dec 16
32° / 22°
Wednesday
Dec 17
32° / 23°
Thursday
Dec 18
30° / 23°
Friday
Dec 19
20° / 14°
Saturday
Dec 20
20° / 14°
Sunday
Dec 21
21° / 13°
Monday
Dec 22
24° / 15°
Tuesday
Dec 23
22° / 14°
Wednesday
Dec 24
21° / 13°
Thursday
Dec 25
21° / 14°
Friday
Dec 26
24° / 14°
Saturday
Dec 27
26° / 17°
Sunday
Dec 28
27° / 18°
Monday
Dec 29
26° / 17°
Tuesday
Dec 30
26° / 16°
Wednesday
Dec 31
25° / 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.