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- New: Summer (June-August) Outlook - Wet Periods into June before Heat Rebuilds and Dryness/Drought Returns
- Check Out the 2026 Rio Grande Valley/Deep South Texas Hurricane Guide
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Current conditions at
Mid Valley Airport (KTXW)
Lat: 26.18°NLon: 97.97°WElev: 70ft.
Partly Cloudy
87°F
31°C
| Humidity | 69% |
| Wind Speed | SE 13 mph |
| Barometer | 29.91 in |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 97°F (36°C) |
| Last update | 8 Jun 7:35 pm CDT |
Extended Forecast for
Mercedes TX
Tonight

Low: 79 °F
Mostly Cloudy
Tuesday

High: 93 °F
Mostly Sunny
Tuesday Night

Low: 77 °F
Partly Cloudy
Wednesday

High: 94 °F
Mostly Sunny
Wednesday Night

Low: 78 °F
Mostly Clear
Thursday

High: 94 °F
Sunny
Thursday Night

Low: 77 °F
Mostly Clear
Friday
High: 94 °F
Sunny then
Slight Chance
T-stormsFriday Night

Low: 76 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly cloudy, with a low around 79. East southeast wind 8 to 13 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 93. East southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 77. East southeast wind 7 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 94. Heat index values as high as 105. Southeast wind 7 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 78. Southeast wind 8 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 94. Southeast wind 8 to 16 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 77. Southeast wind 7 to 16 mph, with gusts as high as 26 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. East southeast wind 7 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 76. Southeast wind 11 to 16 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. East southeast wind 5 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 78. Southeast wind 6 to 15 mph, with gusts as high as 24 mph.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 77.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mercedes TX
26.14°N 97.93°W
26.14°N 97.93°W
7:45 pm CDT Jun 8, 2026
8pm CDT Jun 8, 2026-6pm CDT Jun 15, 2026


