News Headlines
- New: Microburst(s) Cause Damage to Structures, Power Poles, and Trees in Hidalgo County, June 12th, 2025
- New: Spring (March to May) 2025 RGV Weather Summary: A State of Heat and Drought, Broken by a Devastating Flood
- Summer 2025 Outlook - The Heat Is On, Water Resource Issues May Worsen, and Limited Opportunities for Tropical Rains
- 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.
Mostly Cloudy
94°F
34°C
| Humidity | 48% |
| Wind Speed | E 13 mph |
| Barometer | 30.04 in |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 102°F (39°C) |
| Last update | 23 Jun 1:55 pm CDT |
Extended Forecast for
Mercedes TX
This Afternoon
High: 94 °F
Chance
T-stormsTonight
Low: 75 °F
Mostly Clear
Tuesday
High: 93 °F
Mostly Sunny
then Heavy
RainTuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 93 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 74 °F
Partly Cloudy
Thursday
High: 94 °F
Partly Sunny
then Slight
Chance
T-stormsThursday Night
Low: 75 °F
Mostly Cloudy
Friday
High: 94 °F
Partly Sunny
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 3pm. Mostly sunny, with a high near 94. East southeast wind 14 to 16 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 75. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 93. Light east wind becoming east southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 74. East southeast wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 20 mph.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Light east wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 74. East southeast wind 6 to 11 mph becoming light southeast after midnight. Winds could gust as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 94. Light east southeast wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 75. Southeast wind 5 to 13 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 94. Light east southeast wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 76. Southeast wind 5 to 13 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 78.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercedes TX
26.14°N 97.93°W
26.14°N 97.93°W
2:00 pm CDT Jun 23, 2025
2pm CDT Jun 23, 2025-6pm CDT Jun 29, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
