News Headlines
- 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
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- 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.
Fair
95°F
35°C
| Humidity | 47% |
| Wind Speed | S 7 mph |
| Barometer | 29.88 in (1011.6 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 103°F (39°C) |
| Last update | 2 Aug 11:52 am CDT |
Extended Forecast for
3 Miles SSE San Perlita TX
Heat Advisory until August 2, 06:00pm
NOW until 6:00pm Sun
Heat Advisory
This Afternoon
High: 102 °F
Hot
Tonight
Low: 76 °F
Partly Cloudy
Monday
High: 101 °F
Hot
Monday Night
Low: 77 °F
Mostly Clear
Tuesday
High: 101 °F
Hot
Tuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 99 °F
Sunny
Wednesday Night
Low: 78 °F
Mostly Clear
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 102. Heat index values as high as 115. Light southeast wind becoming east southeast 6 to 11 mph.
Tonight
Partly cloudy, with a low around 76. South wind 5 to 11 mph.
Monday
Sunny and hot, with a high near 101. Heat index values as high as 111. South southeast wind 5 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 77. South southeast wind 8 to 16 mph, with gusts as high as 25 mph.
Tuesday
Sunny and hot, with a high near 101. South southeast wind 8 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind 7 to 16 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 99. Southeast wind 7 to 16 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 78. Southeast wind 6 to 16 mph, with gusts as high as 25 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 99. Southeast wind 6 to 15 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 77. East southeast wind 10 to 15 mph becoming light south southeast after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 97. Light southeast wind becoming east southeast 8 to 13 mph in the morning.
Friday Night
Mostly clear, with a low around 77.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 97.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSE San Perlita TX
26.46°N 97.63°W
26.46°N 97.63°W
12:30 pm CDT Aug 2, 2026
12pm CDT Aug 2, 2026-6pm CDT Aug 8, 2026
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