News Headlines
- WE ARE HIRING: NWS Brownsville/Rio Grande Valley is officially hiring a GS-5/7/9 Meteorologist. Apply today at USAJobs!
- New: Hot, Windy, and Rain-Free Weather Since Late June Brought on a Rapid-Onset Drought to Portions of the RGV in Early August
- 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
- 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
Current conditions at
McAllen, Miller International Airport (KMFE)
Lat: 26.18°NLon: 98.24°WElev: 105ft.
A Few Clouds
89°F
32°C
| Humidity | 63% |
| Wind Speed | S 16 mph |
| Barometer | 30.09 in (1018.7 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 15 Aug 9:53 am CDT |
Extended Forecast for
San Juan TX
Today
High: 100 °F
Hot
Tonight
Low: 79 °F
Mostly Clear
Sunday
High: 100 °F
Hot
Sunday Night
Low: 79 °F
Mostly Clear
Monday
High: 99 °F
Sunny
Monday Night
Low: 78 °F
Mostly Clear
Tuesday
High: 100 °F
Hot
Tuesday Night
Low: 78 °F
Mostly Clear
Wednesday
High: 100 °F
Hot
Detailed Forecast
Today
Sunny and hot, with a high near 100. Heat index values as high as 106. Southeast wind 11 to 15 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 79. Southeast wind 6 to 15 mph, with gusts as high as 26 mph.
Sunday
Sunny and hot, with a high near 100. Heat index values as high as 110. East southeast wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 79. East southeast wind 9 to 14 mph becoming light southeast after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 99. Light east southeast wind increasing to 6 to 11 mph in the morning.
Monday Night
Mostly clear, with a low around 78. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.
Tuesday
Sunny and hot, with a high near 100. South southeast wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 78. Southeast wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday
Sunny and hot, with a high near 100. South southeast wind 7 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 79. Southeast wind 10 to 16 mph, with gusts as high as 28 mph.
Thursday
Sunny and hot, with a high near 100. Southeast wind 9 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 80.
Friday
Sunny and hot, with a high near 100.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
San Juan TX
26.18°N 98.16°W
26.18°N 98.16°W
10:45 am CDT Aug 15, 2026
10am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
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