News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- New: August-October 2026 Outlook - Hotter Than Normal And Mainly Dry Conditions Are Expected To Continue; Could Turn Wetter Towards The Fall; Heat Risk, Drought, Fire Weather, And Water Supply Issues Remain In Focus
- Notice: Rio Grande City NOAA Weather Radio Remains Out of Service Until Further Notice
- Check Out the 2026 Rio Grande Valley/Deep South Texas Hurricane Guide
- Guia de Huracanes 2026 del Valle del Rio Grande/Extremo Sur de Texas
Hazardous Weather Conditions
Current conditions at
Harlingen, Rio Grande Valley International Airport (KHRL)
Lat: 26.23°NLon: 97.66°WElev: 33ft.
A Few Clouds
100°F
38°C
| Humidity | 41% |
| Wind Speed | S 15 G 26 mph |
| Barometer | 29.94 in (1013.7 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 110°F (43°C) |
| Last update | 5 Aug 2:52 pm CDT |
Extended Forecast for
Harlingen TX
This Afternoon
High: 100 °F
Hot
Tonight
Low: 80 °F
Mostly Clear
Thursday
High: 100 °F
Hot
Thursday Night
Low: 78 °F
Mostly Clear
Friday
High: 98 °F
Sunny then
Slight Chance
T-stormsFriday Night
Low: 77 °F
Mostly Clear
Saturday
High: 97 °F
Sunny then
Slight Chance
T-stormsSaturday Night
Low: 77 °F
Mostly Clear
Sunday
High: 96 °F
Slight Chance
T-storms
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 100. Heat index values as high as 111. Southeast wind around 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 80. Southeast wind 7 to 14 mph, with gusts as high as 24 mph.
Thursday
Sunny and hot, with a high near 100. Heat index values as high as 110. South southeast wind 6 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 78. Southeast wind 6 to 15 mph, with gusts as high as 25 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. East southeast wind 5 to 13 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 77. East southeast wind 8 to 13 mph becoming light southeast after midnight. Winds could gust as high as 22 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Light east wind increasing to 6 to 11 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 77. East wind 8 to 13 mph becoming light south southeast after midnight. Winds could gust as high as 21 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96. Light east southeast wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 78. South southeast wind 5 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 99. South southeast wind 5 to 15 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 80.
Tuesday
Sunny, with a high near 99.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Harlingen TX
26.19°N 97.7°W
26.19°N 97.7°W
3:45 pm CDT Aug 5, 2026
3pm CDT Aug 5, 2026-6pm CDT Aug 11, 2026
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