The long-range forecast for Harlingen predicts a heatwave, with temperatures reaching up to 40°, significantly higher than typical for Harlingen for this time of the year and 3.3 °C above the historical average.
Select a month and click on a day for more information:
Tuesday
Sep 1
38° / 26°
Wednesday
Sep 2
37° / 25°
Thursday
Sep 3
38° / 25°
Friday
Sep 4
35° / 26°
Saturday
Sep 5
32° / 25°
Sunday
Sep 6
33° / 26°
Monday
Sep 7
32° / 25°
Tuesday
Sep 8
33° / 25°
Wednesday
Sep 9
34° / 25°
Thursday
Sep 10
33° / 25°
Friday
Sep 11
34° / 25°
Saturday
Sep 12
32° / 25°
Sunday
Sep 13
33° / 25°
Monday
Sep 14
33° / 25°
Tuesday
Sep 15
33° / 26°
Wednesday
Sep 16
33° / 26°
Thursday
Sep 17
33° / 26°
Friday
Sep 18
32° / 25°
Saturday
Sep 19
32° / 25°
Sunday
Sep 20
33° / 25°
Monday
Sep 21
33° / 25°
Tuesday
Sep 22
32° / 25°
Wednesday
Sep 23
33° / 25°
Thursday
Sep 24
33° / 25°
Friday
Sep 25
33° / 25°
Saturday
Sep 26
32° / 25°
Sunday
Sep 27
34° / 24°
Monday
Sep 28
33° / 24°
Tuesday
Sep 29
32° / 24°
Wednesday
Sep 30
32° / 24°
Harlingen 30 days weather forecast
Check out our estimated 30 days weather forecast for Harlingen, this data is based on the average weather in Harlingen in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Harlingen next to the desired date.