News Headlines
- New: August-October Outlook for the RGV - Continued Hot and Leaning Dry, but Rainfall Prediction is a Wild Card
- Know Before You Go: A Video Guide to Beach (Surf) Safety on the Gulf Coast
- Check Out the 2025 Rio Grande Valley/Deep South Texas Hurricane Guide
- Guia de Huracanes 2025 del Valle del Rio Grande/Extremo Sur de Texas
Current conditions at
Mid Valley Airport (KTXW)
Lat: 26.18°NLon: 97.97°WElev: 70ft.
Light Rain
82°F
28°C
| Humidity | 77% |
| Wind Speed | Calm |
| Barometer | 29.87 in |
| Dewpoint | 74°F (23°C) |
| Visibility | 3.50 mi |
| Heat Index | 88°F (31°C) |
| Last update | 20 Aug 4:15 pm CDT |
Extended Forecast for
2 Miles E Mercedes TX
This Afternoon
High: 96 °F
Chance
T-stormsTonight
Low: 76 °F
Mostly Clear
Thursday
High: 98 °F
Patchy Fog
then Slight
Chance
T-stormsThursday Night
Low: 76 °F
Clear
Friday
High: 98 °F
Sunny then
Chance
T-stormsFriday Night
Low: 77 °F
Chance
ShowersSaturday
High: 95 °F
Slight Chance
T-storms then
Showers
LikelySaturday Night
Low: 77 °F
Chance
Showers and
Patchy FogSunday
High: 94 °F
Slight Chance
T-storms and
Patchy Fog
then Chance
T-storms
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 96. East northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 76. East wind 5 to 8 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, sunny, with a high near 98. Calm wind becoming east 5 to 7 mph in the afternoon.
Thursday Night
Clear, with a low around 76. East southeast wind 5 to 9 mph becoming light and variable after midnight.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 98. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 77. East wind 5 to 9 mph becoming calm after midnight.
Saturday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 95. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 77. East wind 5 to 8 mph becoming calm after midnight.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 94. Calm wind becoming east 5 to 7 mph in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. East wind 5 to 9 mph becoming light southeast in the evening.
Monday
A 40 percent chance of showers and thunderstorms. Patchy fog. Otherwise, mostly sunny, with a high near 96. Light southeast wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles E Mercedes TX
26.16°N 97.88°W
26.16°N 97.88°W
4:30 pm CDT Aug 20, 2025
4pm CDT Aug 20, 2025-6pm CDT Aug 26, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
