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Current conditions at
Harlingen, Rio Grande Valley International Airport (KHRL)
Lat: 26.23°NLon: 97.66°WElev: 33ft.
Fair
93°F
34°C
| Humidity | 56% |
| Wind Speed | E 14 mph |
| Barometer | 29.96 in (1014.4 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 105°F (41°C) |
| Last update | 18 Sep 4:52 pm CDT |
Extended Forecast for
Harlingen TX
Tonight

Low: 77 °F
Mostly Clear
Saturday

High: 98 °F
Sunny
Saturday Night

Low: 76 °F
Mostly Clear
Sunday
High: 99 °F
Mostly Sunny
then Slight
Chance
T-stormsSunday Night

Low: 78 °F
Partly Cloudy
Monday
High: 99 °F
Sunny then
Slight Chance
T-stormsMonday Night

Low: 78 °F
Mostly Clear
Tuesday
High: 98 °F
Sunny then
Chance
T-stormsTuesday Night

Low: 78 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 77. East wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 98. Heat index values as high as 106. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76. East wind 5 to 10 mph becoming light southeast in the evening. Winds could gust as high as 20 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Heat index values as high as 108. Light east southeast wind becoming east 5 to 10 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 78. East wind 6 to 11 mph becoming light southeast after midnight. Winds could gust as high as 21 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Light southeast wind becoming east 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 78. East wind 6 to 11 mph becoming light southeast after midnight. Winds could gust as high as 21 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. Light east northeast wind becoming east 8 to 13 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 78. East wind 6 to 11 mph becoming light east southeast in the evening. Winds could gust as high as 21 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Sunny, with a high near 97. Light northeast wind becoming east 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 78. East wind 6 to 11 mph becoming light in the evening. Winds could gust as high as 21 mph.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 97.
Thursday Night
A 20 percent chance of showers. Mostly clear, with a low around 78.
Friday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Harlingen TX
26.19°N 97.7°W
26.19°N 97.7°W
5:30 pm CDT Sep 18, 2026
5pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026


