News Headlines
- New: Spring (March to May) 2025 RGV Weather Summary: A State of Heat and Drought, Broken by a Devastating Flood
- New: Summer 2025 Outlook - The Heat Is On, Water Resource Issues May Worsen, and Limited Opportunities for Tropical Rains
- New! The 2025 Rio Grande Valley/Deep South Texas Hurricane Guide is Here
- Nuevo! Guia de Huracanes 2025 del Valle del Rio Grande/Extremo Sur de Texas es Aqui
- Take Advantage of May (and June) to Be Ready for the 2025 Atlantic Hurricane Season!
Current conditions at
Mid Valley Airport (KTXW)
Lat: 26.18°NLon: 97.97°WElev: 70ft.
Mostly Cloudy
93°F
34°C
| Humidity | 52% |
| Wind Speed | S 14 G 23 mph |
| Barometer | 29.86 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 102°F (39°C) |
| Last update | 12 Jun 12:35 pm CDT |
Extended Forecast for
Mercedes TX
This Afternoon
High: 98 °F
Sunny
Tonight
Low: 80 °F
Partly Cloudy
Friday
High: 97 °F
Mostly Sunny
Friday Night
Low: 80 °F
Mostly Clear
Saturday
High: 97 °F
Sunny
Saturday Night
Low: 80 °F
Mostly Clear
Sunday
High: 97 °F
Mostly Sunny
then Slight
Chance
T-stormsSunday Night
Low: 78 °F
Mostly Clear
Monday
High: 97 °F
Mostly Sunny
then Slight
Chance
T-storms
Detailed Forecast
This Afternoon
Sunny, with a high near 98. Heat index values as high as 107. South southeast wind around 17 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 80. Southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 97. Heat index values as high as 108. South southeast wind 10 to 16 mph, with gusts as high as 26 mph.
Friday Night
Mostly clear, with a low around 80. South southeast wind 10 to 15 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 97. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 80. Southeast wind 8 to 14 mph, with gusts as high as 24 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 97. Southeast wind 7 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 78. Southeast wind 7 to 14 mph, with gusts as high as 22 mph.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Southeast wind 6 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 78. Southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 97. Southeast wind 8 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 96.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercedes TX
26.14°N 97.93°W
26.14°N 97.93°W
12:33 pm CDT Jun 12, 2025
12pm CDT Jun 12, 2025-6pm CDT Jun 18, 2025
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